ML12338A625
| ML12338A625 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 03/29/2012 |
| From: | GZA GeoEnvironmental |
| To: | Atomic Safety and Licensing Board Panel |
| SECY RAS | |
| References | |
| RAS 22127, 50-247-LR, 50-286-LR, ASLBP 07-858-03-LR-BD01 | |
| Download: ML12338A625 (154) | |
Text
APPENDIX C - GEOPHYSICS BOREHOLE ENT00331J Submitted: March 29, 2012 United States Nuclear Regulatory Commission Official Hearing Exhibit In the Matter of:
Entergy Nuclear Operations, Inc.
(Indian Point Nuclear Generating Units 2 and 3)
ASLBP #: 07-858-03-LR-BD01 Docket #: 05000247 l 05000286 Exhibit #:
Identified:
Admitted:
Withdrawn:
Rejected:
Stricken:
Other:
ENT00331J-00-BD01 10/15/2012 10/15/2012 C
I--
c:.\\,.~""R REGu 1
/¥:"
0
~
~
~
"1-11 o~
~ ****il "
-.J
215 Hopping Brook Road Holliston MA 01746 508-429-2430 FAX 508-429-0488 June 10, 2006 Mr. David Winslow, PhD, PG GZA GEOENVIRONMENTAL OF NEW YORK 440 Ninth Avenue New York, NY 1001
Subject:
Draft Borehole Geophysics Logging Report voice: 212-594-8140 Indian Point Site fax:
212-279-8180 Buchanan, New York
Dear Mr. Winslow:
This report describes borehole geophysics logging performed by Geophysical Applications, Inc. at the above-noted site. The primary objective of this survey was to help GZA identify hydraulically active fracture depths and orientations encountered by nine uncased bedrock boreholes.
The borehole-logging suite performed at each well included: fluid temperature (FTemp), fluid resistivity (FRes), acoustic televiewer (ABI), and heat-pulse flowmeter testing. The flowmeter testing was performed during both ambient and pumping conditions. Optical televiewer logging and conventional video logging were also performed at selected boreholes.
METHODS OF INVESTIGATION Survey Control All borehole logs were referenced to depths below approximate ground surface. The geophysical logging winch contains an optical depth encoder, to maintain depth measurements accurate within approximately + 0.5 feet throughout a borehole.
Borehole Geophysics Logging A Mount Sopris model 4MXA or 4MXB logging winch equipped with a Mount Sopris model MGX-II electronics console recorded conventional logs at each well. All conventional log data were recorded at 0.1-foot depth increments, as determined by the logging winchs digital depth encoder.
FTemp and FRes logs were recorded during the first downward logging run at each borehole, using a Mount Sopris caliper probe with a fluid temperature and fluid resistivity subassembly.
These fluid logs were obtained using a downward logging speed of approximately 4 to 5 feet per minute. Caliper data were subsequently recorded while pulling the same probe upward at approximately 10 feet per minute.
Acoustic televiewer (ABI) data were obtained using an Advanced Logic Technologies (ALT) model ABI40 acoustic televiewer probe, with the Mount Sopris winch and an ALT model Abox
Mr. David Winslow, PhD, PG June 10, 2006 GZA GEOENVIRONMENTAL OF NEW YORK Page 2 Geophysical Applications electronics console. ATV data were recorded at 0.01-foot depth intervals, with 288 pixels for each 360-degree scan around the borehole wall. Logging speeds were approximately 4 feet per minute with this probe.
An optical televiewer log was recorded in wells MW-31 and MW-32 using an ALT model OBI40 probe, also with a Mount Sopris winch and the ALT electronics console. OBI data were stored at depth increments of 0.007 feet, with 360 pixels for each 360-degree scan around the borehole wall. OBI logging speeds were also approximately 4 feet per minute.
A pair of centralizer assemblies positioned the ABI and OBI probes near the middle of each borehole. Each centralizer included four stainless-steel bow springs, clamped to the probe housings with brass compression fittings, at positions recommended by the probe manufacturer to minimize the risk of interference with the probes internal three-component magnetometers.
Conventional video logs were recorded at MW-30 (formerly designated P-1) and MW-40. These images were obtained using a Laval Cam-Pak 200 borehole video system.
Flowmeter data were recorded with a Mount Sopris model HPF-2293 heat-pulse flowmeter probe, at specific depths selected from field plots of the caliper, FTemp, and FRes logs.
Flowmeter data were initially recorded under ambient conditions. The same test depths were subsequently repeated while pumping at 0.4 to 0.75 (gpm) with a Grundfos, Fultz, or Whale pump. The pump was positioned a few feet below the observed static water level in each well.
In some cases, the pump was operated so as to maintain the water level some number of feet below the static level (if the well produced little water and the water level was constantly dropping while pumping).
All geophysical log data were recorded on a laptop computers hard drive, and copied to CD-ROM as a backup precaution.
Post-survey plot scales were adjusted to display as much detail as possible. All conventional logs and flowmeter data were merged onto one plot, to aid data correlation. Televiewer logs are presented on separate pages, at an enlarged scale, for clarity.
Quality Assurance Checks A variety of checks were performed periodically during the fieldwork, to help assure that the geophysical logging probes were functioning properly:
The caliper probe calibration was checked using two rings of known diameter (3.51 and 10.25 inches).
The ABI probe was visually examined prior to each logging run, to confirm that the mirrors motor was rotating in the proper direction. Following this check, the probe was not turned off until data collection was complete.
The ABI and OBI probes magnetometers were functionally checked by comparing the azimuths reported by those probes (while stationary, typically on top of a plastic shipping box) with the probes azimuth as measured by a handheld compass.
Equipment Decontamination Procedures Decontamination consisted of an Alconox scrub and tap water rinse of the logging cable and probes between logging runs.
Mr. David Winslow, PhD, PG June 10, 2006 GZA GEOENVIRONMENTAL OF NEW YORK Page 3 Geophysical Applications SURVEY LIMITATIONS Measured geophysical-log depths are estimated to be accurate within + 0.5 feet at this site, allowing for some slippage of the winches depth-measurement wheels.
The caliper-probe arms can measure borehole diameters up to approximately 16 inches. Caliper logs can most-confidently detect fractures that cross a borehole at moderate angles, e.g. less than approximately 70 degrees from horizontal. Caliper logs may not accurately detect near-vertical fractures.
The heat-pulse flowmeter probe can measure vertical (i.e. upward or downward) water flow rates between 0.02 and approximately 1.2 gallons per minute (gpm). Higher flow rates may be erroneously characterized as zero flow by this probe. This device does not measure horizontal water flow rates or directions.
Hydraulically-active fracture zones were inferred by correlating numerous geophysical logs.
These interpretations are a subjective judgment based upon available data.
Acoustic and optical televiewer probes rely on a three-component magnetometer to orient the recorded images with respect to magnetic north. These images become distorted when the magnetometers approach the bottom of steel casing, typically beginning approximately 1 to 2.5 feet below the steel. The upper portion of each unoriented televiewer image was imported into the WellCAD log-plot software and manually rotated to match a distinctive feature below the magnetically distorted interval, to provide usable images throughout the entire water-filled and uncased borehole depth ranges. Dip orientations of televiewer-inferred features within 2.5 feet of a steel casing are therefore approximate.
Calculated down-dip compass azimuths of nearly-horizontal planar features have larger uncertainties than azimuths of steeper-dipping features.
RESULTS Geophysical log data and generalized log interpretations are described below. Specific interpretations regarding hydraulically-active fracture depths are listed in the comments column on the conventional log plots. Most caliper logs show a one-or two-inch diameter range (i.e. 3.5 to 4.5, or 3 to 5, inches in diameter). Horizontal plot scales for the remaining logs were adjusted to show the full range of observed variations at each borehole.
All geophysical logs described in this report are presented in Appendix A, and summary televiewer interpretations are provided in Appendix B. These televiewer-interpretation tables are Excel spreadsheets listing observed planar-feature depths, down-dip compass directions for each inferred planar feature (note that this is perpendicular to the strike direction), feature dip angles with respect to horizontal, and whether an inferred feature was judged to be relatively open or less-open.
Caliper log data are presented in the left conventional log-plot column. Caliper inflections to the right indicate borehole enlargements, for example at casing joints, or where the drill bit passed through a fracture zone.
Fluid temperature (FTemp) and fluid resistivity (FRes) logs are presented in the next conventional-log plot column. Localized inflections or changes in slope of FTemp or FRes logs typically represent water entering or exiting a borehole. Large inflections at the very bottom of a borehole may represent only accumulated sediments with temperature or electrical properties that contrast with the water column.
Mr. David Winslow, PhD, PG June 10, 2006 GZA GEOENVIRONMENTAL OF NEW YORK Page 4 Geophysical Applications Heat-pulse flowmeter data are presented on the caliper panel (ambient flow measurements) and on the FTemp/FRes panel (flow measurements while pumping). Shaded boxes to the left of centerline on either panel represent downwards water flow, with the box length indicating the flow magnitude in gpm. Shaded boxes to the right of a panels centerline represent upwards water flow. Filled circles represent depths where zero flow was observed (i.e., flow less than the probes minimum detectable rate, approximately 0.02 gpm). Flowmeter test depths were selected on-site using field plots of the caliper, fluid temperature, and fluid conductivity logs. Note that the plotted flow magnitudes shown are as reported by the acquisition software. Pumping rates and observed drawdown (from the eight wells where pumping flowmeter tests were performed) are listed in Appendix C, Table 1.
Acoustic televiewer data are presented via two columns (ABI40 traveltime and amplitude), where each column represents a cylindrical image sliced down the north edge and laid flat on the printed page. Magnetic north is at the left edge of each column, and the plots progress through east, south, west, and back to north at the right-hand edge.
Acoustic televiewer data were evaluated using WellCADs image-processing module, to measure planar feature dip angles and down-dip azimuths. All down-dip azimuths are referenced to magnetic north. Measured feature orientations are indicated by tadpole plots, where each filled-circle indicates a features dip angle from horizontal (plotted on a graph that ranges between zero and 90 degrees from left to right). Each tadpole tail points in the features down-dip azimuth, assuming that magnetic north is straight up on the printed page. Note that the down-dip azimuth indicated by each tadpole tail is perpendicular to the features strike direction. Also note that the tadpole orientations were corrected for borehole deviation from a vertical orientation.
ABI40 images were also presented in a cylindrical manner, in the column labeled 3D ABI40 image, per GZAs request. In this representation, magnetic north is at the middle of the image, east is towards the left, and west is towards the right.
Optical televiewer data are presented in a single column (labeled OBI40 image), showing geologic elements with contrasting color properties. The OBI40 image orientation is comparable to the ABI40 log, with magnetic north at the left edge, progressing through east, south, west, and back to north at the right-hand edge.
Planes represented on both the ABI travel-time and amplitude plots are denoted as open features.
Features represented only on the ABI amplitude plots are likely to have smaller apertures (or possibly represent bedding, foliation or mineral-filled joints), and are therefore judged relatively less open. Red tadpoles, and red sine-curve lines superimposed on the ABI plots, represent inferred open fractures. Black tadpoles, and black sine curves on the ABI plots, represent interpreted less-open features. The tadpoles are also shown on the conventional log plots, to help indicate possible orientations of planar fractures that contributed to groundwater flow observed in each borehole.
Most planar feature orientations were interpreted from the acoustic televiewer logs, because the open or less-open nature of a fracture is more readily evaluated by the ABI data than the OBI40 images (open fractures can be difficult to distinguish based on color alone, particularly when the rock is dark-colored).
Televiewer interpretations are summarized using rose diagrams, to indicate the predominant down-dip azimuth(s) of features observed in a borehole. These rose diagrams are presented with
Mr. David Winslow, PhD, PG June 10, 2006 GZA GEOENVIRONMENTAL OF NEW YORK Page 5 Geophysical Applications magnetic north oriented straight up on the printed page. The red rose diagram represents inferred open features, and the black rose diagram represents inferred less-open features (e.g. bedding).
A stereoplot also summarizes the open and less-open feature orientations inferred from the televiewer logs. Each stereoplot was prepared using an equal-angle (Schmidt) projection on the southern hemisphere, with north oriented straight up on the printed page. The pole to a horizontal feature would plot near the diagrams center, whereas a vertical features pole would plot at the diagrams outer edge, opposite the features down-dip compass direction.
Annotations on the conventional log plot describe interpreted hydraulically-active fracture depths, based on correlations between all of the available log data. Selected observations that may be of particular interest are described below.
MW-30 This well was initially designated P-1, and subsequently re-named MW-30. The static water level was initially near 40.5 feet deep. GZA elected to add water to this well, such that the water level was approximately 31 to 33 feet deep during the FTemp/FRes and ambient flowmeter tests.
Consequently, the fluid log variations may represent mostly the contrast between natural and added fluids, rather than hydraulically active fractures. GZA added additional water to this well, up to the steel casing, to facilitate acoustic televiewer logging.
The caliper log shows a very smooth bedrock surface in the uncased section. Very distinct FTemp and FRes inflections near 46 feet deep may represent either a transmissive zone, or the interface between water originally in the well versus water added by GZA.
The ambient flowmeter measurements, in this well only, represent observations after water had already been added to the borehole. These measurements suggest that ambient downward water flow exited between 41 to 45 feet deep, but this is a very uncertain result.
The black rose diagram shows that most less-open planar features dip down towards the southeast, south-southeast, and northwest. No open feature planes were observed in this borehole.
The stereoplot diagram shows two feature-pole clusters. The larger cluster, in the diagrams upper left quadrant, represents less-open planes that dip down towards the southeast and south-southeast at approximately 30 to 60 degrees from horizontal. The smaller cluster, in the stereoplots lower right quadrant, represents less-open planes that dip down towards the northwest at approximately 30 to 70 degrees from horizontal.
MW-31 This wells caliper log shows a significant enlargement near the casing bottom (5 to 6 feet deep),
and others near 16 and 27 feet deep.
FTemp or FRes inflections judged likely to represent hydraulically active zones were observed near 44.5, 47.5, 56, 60, and 82 feet deep.
Weak ambient downward flow entered less than 40 feet deep, and increased between 46 to 50 feet. Some of this ambient downward flow may have exited at a zone of lower hydraulic head between 50 to 61 feet, and the remainder exited between 80 to 85 feet deep.
Most inflow while pumping entered between 46 to 50 feet deep, probably at a single open fracture that dips down towards the west-northwest at approximately 25 degrees from horizontal. Inflow
Mr. David Winslow, PhD, PG June 10, 2006 GZA GEOENVIRONMENTAL OF NEW YORK Page 6 Geophysical Applications while pumping also increased between 40 to 46 feet deep. Pumping this well did not affect the ambient downward flow observed at the 50 through 80-foot test depths.
The black rose diagram shows that interpreted less-open feature planes mostly dip down towards the northwest and southeast. The red rose diagram indicates that interpreted open feature planes exhibited similar down-dip compass azimuths.
The stereoplot diagram shows at least two clusters of feature poles. A loosely grouped cluster located in the diagrams lower right quadrant represents open and less-open planes that dip down towards approximately the northwest, at 20 to 60 degrees from horizontal. A second smaller cluster, located in the diagrams upper left quadrant, represents mostly less-open planes that dip down towards the southeast at approximately 45 to 65 degrees from horizontal.
MW-32 This wells caliper log shows significant enlargements near 9 and 50 feet, and other small enlargements near 22, 55, and 133 feet deep.
Distinct FTemp or FRes inflections judged to represent hydraulically active zones were observed at:
possibly 40, 54, 78, 86, possibly 118, possibly 122, possibly 127, 177, and 187 feet deep.
Strong ambient downward flow entered less than 46 feet deep, and increased between 46 to 52, 52 to 60, 75 to 90, 90 to 105, and possibly 115 to 130 feet deep. Downward ambient flow apparently exited at zones of lower hydraulic head between: possibly 105 to 115, 130 to 145, 170 to 180, 180 to 190, and 190 to 195 feet deep.
Pumping this well at a low rate reduced, but did not eliminate, the strong ambient downward flow.
All water flow that exited via the pump apparently entered less than 46 feet deep, possibly at the 40-foot distinct FRes and FTemp inflections.
The black rose diagram shows that most interpreted less-open planar features dip down towards the southeast, east-southeast, and south-southeast. Smaller numbers of less-open planes dip down towards approximately the northwest, north-northwest, and west-northwest.
The red rose diagram shows that most interpreted open planes dip down towards the south-southeast and southeast.
The stereoplot diagram shows two very wide clusters of feature poles. The larger cluster is located near the diagrams upper left side, and represents many less-open and open planes that dip down towards the southeast, east-southeast, and south-southeast, mostly at about 35 to 75 degrees from horizontal.
The second wide cluster of feature poles, located near the diagrams lower right side, represents less-open planes that dip down towards the northwest, north-northwest, and west-northwest, mostly at 30 to 80 degrees from horizontal.
MW-34 This boreholes caliper log shows small enlargements near 6, 10 to 11, and 15 to 16 feet deep.
Fluid log anomalies judged to possibly represent hydraulically active zones were observed near 16 feet, and possibly 10 feet deep. The noisy appearing fluid logs were probably caused by transducers that were removed from this well by GZA immediately prior to logging.
Very weak upward ambient flow entered between 13 to 18 feet, and exited less than 13 feet deep.
Mr. David Winslow, PhD, PG June 10, 2006 GZA GEOENVIRONMENTAL OF NEW YORK Page 7 Geophysical Applications Very weak inflow while pumping may have entered between 24 to 28 feet, and increased between 13 to 18 feet deep.
Most interpreted less-open feature planes (black rose diagram) dip down towards the southeast, northeast, and approximately northwest.
The red rose diagram shows that the interpreted open feature planes may dip down in four azimuths: southeast, northeast, east-southeast, and north-northwest.
The stereoplot appears to show at least one cluster of feature poles, near the diagrams upper left edge. This cluster represents open and less-open planes that dip down towards the southeast, at approximately 65 degrees from horizontal.
MW-35 This well was relatively shallow, and contained some diesel fuel that was apparently floating on the water surface. The caliper log shows no significant enlargements throughout the uncased depth range.
FTemp and/or FRes inflections judged to possibly represent hydraulically active zones were noted near 13.5, 15, 18 to 20, possibly 22, and possibly 26 or 27.5 feet deep.
Flowmeter observations in this well were not as repeatable as generally seen at other wells logged during this survey. This may be due to a pump that is operating nearby, thereby causing water flow through the well at unknown rates and times.
Upward ambient flow may have entered between 13 to 18 feet deep, and exited at a zone of lower hydraulic head less than 13 feet deep (possibly near the static water level).
Inflow while pumping may have originated between 24 to 28 feet deep, and increased between 13 to 28 feet.
The black rose diagram shows that most interpreted less-open feature planes dip down towards the south, south-southwest, and southeast. The red rose plot shows that the single interpreted open feature plane dips down towards the east-northeast.
The stereoplot diagram shows a small cluster of black feature poles above the diagrams center, representing less-open planes that dip down towards the south and south-southwest at approximately 40 to 60 degrees from horizontal.
MW-39 The caliper log for this borehole shows a substantial enlargement immediately below the casing bottom (approximately 24 to 25 feet deep), and small enlargements near 69 and 104 feet.
FTemp and/or FRes inflections judged to possibly represent hydraulically active zones were observed at the following depths: 63, 68 to 69, 84 to 87, 95, 100, 116, 121, and 143 feet.
Ambient upward flow entered between 90 to 98 feet deep, and increased between 80 to 90 feet.
This upward ambient flow exited at a zone of lower hydraulic head between 60 to 72 feet deep (probably at the 69-foot deep caliper enlargement and corresponding FTemp and FRes inflections).
Ambient downward flow entered between 98 to 110 feet deep, possibly near the subtle fluid log inflections near 100 feet). Some of this downward ambient flow exited at a zone of lower head between 110 to 128 feet, and the remainder exited between 140 to 155 feet deep.
Mr. David Winslow, PhD, PG June 10, 2006 GZA GEOENVIRONMENTAL OF NEW YORK Page 8 Geophysical Applications Note that pumping this well at a low rate did not eliminate the downward flow observed during ambient conditions at 110 feet deep. Upward flow while pumping originated between 98 to 110 feet, and increased at each of the shallower flowmeter test depths.
The black rose diagram shows that most less-open planar features dip down towards approximately the southeast. Smaller numbers of less-open planes also dip down towards the east-southeast, east, south-southeast, and south-southwest.
Relatively few open planar features were observed in this well. The most common down-dip orientations of this small population of open planes were towards approximately the northwest and northeast.
The stereoplot diagram shows one large cluster of feature poles, on the diagrams upper left side.
These poles represent mostly less-open planes that dip down towards the southeast, east-southeast, and south-southeast, primarily between 40 to 80 degrees from horizontal.
MW-40 This wells caliper log shows numerous enlargements, particularly between the casing bottom and 21 feet deep. Loose rock apparently fell from at least one of these zones during the initial logging attempt, trapping a flowmeter probe for several days. After GZAs driller assisted with removing the lodged probe, the well was reamed and subsequently logged without further difficulties.
FRes and/or FTemp inflections judged likely to represent hydraulically active zones were observed at the following depths: 20.5, 26, 31, 33.5, 39, 40, 43 to 44, 48, 55, 59, 62, 65, 67, 74 to 75, and 82 to 83 feet deep.
Strong ambient downward inflow entered between 18 to 22 feet deep, and increased between 22 to 25, 25 to 30, and 30 to 40 feet deep. Some of this ambient downward flow may have exited between 40 to 60 feet deep, but most exited at a zone of lower hydraulic head between 80 to 110 feet deep (probably at the FTemp and FRes inflections, and open planar features near 83 feet).
Pumping this well at approximately 0.5 gpm reduced, but did not eliminate, the strong ambient downward flow. All water flow that exited via the pump apparently entered the borehole less than 22 feet deep (probably at the 16 and/or 20.5-foot deep caliper enlargements).
The black rose diagram shows that most interpreted less-open planar features dip down towards due north, north-northwest, and north-northeast. Small populations of less-open features also dip down towards the east-southeast and west-northwest.
The red rose diagram shows that open planar features exhibited a wide range of down-dip azimuths. A small number of open feature planes apparently dip down towards approximately the southeast.
The stereoplot diagram shows two primary groups of feature poles. The largest group is located at the bottom of the stereoplot, representing mostly less-open planes that dip down towards due north, north-northwest, and north-northeast at approximately 30 to 75 degrees from horizontal. A much smaller cluster of poles, located near the plots upper left side, represents mostly less-open planes that dip down towards the southeast at 50 to 70 degrees from horizontal.
MW-51 This boreholes caliper log shows only two minor diameter increases, near the casing bottom (21 feet) and also at 26 feet deep.
Mr. David Winslow, PhD, PG June 10, 2006 GZA GEOENVIRONMENTAL OF NEW YORK Page 9 Geophysical Applications The most distinct fluid log inflections judged to represent hydraulically active features were observed near 113 feet deep, coincident with an open planar feature that dips gently almost due east. Other subtle FTemp and FRes inflections that may represent hydraulically active zones were inferred at 32, 34 to 40, 43, 49, 52, possibly 88 to 90, and possibly 123 feet deep.
Strong ambient downward flow entered less than 31 feet deep, near the static water level. Ambient downward flow was observed to increase at numerous depth ranges, including: 31 to 40, 40 to 47, and 55 to 70 feet deep. Some of this ambient downward flow exited at zones of lower hydraulic head between 70 to 85 and 85 to 100 feet deep; the remainder exited between 100 to 114 feet deep (probably at the 113-foot FTemp and FRes inflections noted above).
Additional weak ambient downward flow was observed entering between 114 to 130 feet deep, and exiting between 159 to 176 feet deep, and greater than 190 feet.
The black rose diagram shows that most less-open feature planes dip down towards the west-northwest to northwest, and southeast.
The small number of open planar features represented by the red rose plot dip down towards the west-southwest, east-southeast, and southeast.
The stereoplot diagram shows two primary clusters of feature poles. The largest cluster is located below and right of the diagrams center, representing mostly less-open planes that dip down towards the west, west-northwest, and northwest, mostly at about 20 to 70 degrees from horizontal.
A smaller cluster of feature poles, plotted near the diagrams upper left side, represents less-open planes that dip down towards approximately the southeast, mostly at 50 to 70 degrees from horizontal.
MW-52 This wells caliper log shows relatively little variation. Two minor enlargements are visible near 15 and 124 feet deep.
GZA removed the following apparatus from this well, immediately prior to geophysics logging: a pressure transducer, a sampling pump, and ancillary tubing and wires. Pulling these items through the water column resulted in some mixing of the borehole fluid properties, therefore inferred hydraulically active depths based on the fluid logs are less confident compared to most other wells logged at this site. FRes and FTemp variations judged to possibly represent hydraulically active zones were interpreted at the following depths: 20 to 27, 44, 47, 53, 59, 62, 64, 77, 101, 104, 115, and 135 to 139 feet.
Ambient flowmeter tests showed weak downward flow entering at numerous locations, possibly including 18 to 22, 43 to 56, 70 to 83, 95 to 110, 110 to 126, 155 to 171, and 171 to 182 feet deep.
Most ambient downward flow exited at a zone of lower hydraulic head greater than 182 feet deep.
Weak ambient downward flow may have exited at numerous depths including: 22 to 30, 56 to 70, 83 to 95, and possibly 140 to 155 feet.
Pumping this well quickly dropped the water level by several feet. Consequently, the pump was operated as needed to maintain the water level 3.1 feet below the static level. This pumping condition eliminated most of the downward flow observed during ambient conditions. Weak upward flow while pumping entered between 140 to 155, 56 to 70, 43 to 56, and 18 to 30 feet deep.
Mr. David Winslow, PhD, PG June 10, 2006 GZA GEOENVIRONMENTAL OF NEW YORK Page 10 Geophysical Applications The black rose diagram shows that most interpreted less-open planar features dip down towards the east-southeast and east. Smaller populations of less-open planes dip down towards the south-southeast, north to north-northwest, and west-northwest.
The red rose diagram shows that the few interpreted open planar features mostly dip down towards the east-southeast, east-northeast, and southeast.
The stereoplot diagram shows a wide range of plotted pole orientations. The largest cluster of feature poles is located left of the diagrams center, representing mostly less-open planar features that dip down towards the east-southeast, east, and east-northeast at 40 to 75 degrees from horizontal. Additional (but smaller) clusters of feature poles appear to represent the following down-dip orientations: a) down towards the north and north-northwest at 40 to 60 degrees from horizontal, b) down towards the west-northwest at 40 to 50 degrees from horizontal, and down towards the south-southeast at both 30 to 40 and 60 to 80 degrees from horizontal.
We appreciate this opportunity to provide geophysical services. Please call the undersigned at 508/429-2430 if we may provide additional information that would benefit GZAs project.
Sincerely, GEOPHYSICAL APPLICATIONS, INC.
Mark E. Blackey Principal and Geophysicist 105836 - 105836.rpt.doc
Geophysical Applications Draft Borehole Geophysics Logging Report Indian Point Site Buchanan, New York Prepared for GZA GEOENVIRONMENTAL OF NEW YORK June 2006
Geophysical Applications Appendix A Borehole Geophysics Log Plots
Project - Well: GZA / Buchanan, NY - MW-30 (former P-1) conventional logs Depth 1in:10ft FTemp (deg C) 20.1 22.6 FRes (ohm-m)
-2 58 Comments tilt-corrected planar features 0
90 re-calibrated caliper (inches) 3.5 4.5 "ambient" flow (gpm; see text)
-0.2 0.2 zero "ambient" flow (see text)
-0.2 0.2
-10
-5 0
5 10 15 20 25 30 35 40 45 50 55 60 all depths in feet below ground surface; steel casing to approximately 4.5 feet deep; static water level initially near 40.5 feet deep; GZA added water to raise the water level up to the steel casing during acoustic televiewer logging; water level was near 31 to 33 feet deep during "ambient" flowmeter testing & FTemp/FRes logs "ambient" downward flow exited between 41 to 45 feet deep; the FRes & FTemp inflections near 46 feet deep may be due to a transmissive fracture, or possibly the interface between water added by GZA & groundwater that originally filled the well below 40.5 feet deep 105836 - mw30.wcl Well: GZA / Buchanan, NY - MW-30 (former P-1) conventional logs
Project - Well: GZA / Buchanan, NY - MW-30 (former P-1) acoustic televiewer log Depth 1in:1ft ABI40 amplitude 0° 0° 180° 90° 270° ABI40 traveltime 0° 0° 180° 90° 270° planar ABI features 0° 0° 180° 90° 270° less-open planar features Azimuth Count - Percent Interval stereoplot Schmidt Plot - Lower Hemisphere planar ABI features 0° 0° 180° 90° 270° tilt-corrected planar features 0
90 4
6 8
10 12 14 16 18 Well: GZA / Buchanan, NY - MW-30 (former P-1) acoustic televiewer log Page 1
20 22 24 26 28 30 32 34 0° 180° Well: GZA / Buchanan, NY - MW-30 (former P-1) acoustic televiewer log Page 2
34 36 38 40 42 44 46 48 0° 180° Well: GZA / Buchanan, NY - MW-30 (former P-1) acoustic televiewer log Page 3
~.-
,~ -
~
~-'!1
, ~-f-.....I
--'0., ~ ",."_,~--
- .t
50 52 54 56 58 60 Well: GZA / Buchanan, NY - MW-30 (former P-1) acoustic televiewer log Page 4 1'\\
'-----. ~
V
~
,/ ~
r-....
1--
~
1-*
.. 1-
~
I-
~ V::=
~ ~
1--
~
~~
~
'0 K
) ~
1\\
~
.~
~
r---
i*---.-
~
i
- :=--I
- e.. ~
. ~
~
~
r-::
~
~
~
~..
. ~
1,-
r--..
~
~
r ~
~
I ~
i
Project - Well: GZA / Buchanan, NY - MW-31 conventional logs Depth 1in:10ft FTemp (deg C) 19 21 FRes (ohm-m) 0 6
Comments caliper (inches; re-calibrated post-survey) 3.5 4.5 ambient flow (gpm)
-0.5 0.5 pumping flow (gpm)
-0.5 0.5 zero pumping flow
-0.5 0.5 zero ambient flow
-0.5 0.5 tilt-corrected planar features 0
90 5
10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 all depths in feet below top of steel casing (in road box); steel casing to approximately 5 feet deep; water level near 32 feet deep at time of logging ambient inflow entered between the water level & 40 feet deep, &
flowed downward inflow while pumping may have entered between 40 & 46 feet deep (possibly near the 44.5-foot deep FTemp & FRes inflections) most inflow while pumping entered between 46 to 50 feet deep (probably near the 47.5-foot deep FRes inflection, &
nearby FTemp inflections);
ambient downward inflow also increased in this depth interval some downward flow (during both ambient & pumping conditions) may have exited at zones of lower hydraulic head between 50 to 61 feet deep (possibly at subtle FTemp slope changes near 56 & 60 feet deep) downward flow (during both ambient & pumping conditions) exited the borehole at a zone of lower hydraulic head between 80 to 85 feet deep (probably near the 82-foot deep FTemp slope change) 105836 - mw31.wcl Well: GZA / Buchanan, NY - MW-31 conventional logs
Project - Well: GZA / Buchanan, NY - MW-31 optical & acoustic televiewer logs Depth 1in:1ft ABI40 amplitude 0° 0° 180° 90° 270° ABI40 traveltime 0° 0° 180° 90° 270° OBI40 image 0° 0° 180° 90° 270° ar ABI features (OBI features above water 0° 0° 180° 90° 270° r ABI features (OBI features above water l 0° 0° 180° 90° 270° tilt-corrected planar features 0
90 less-open feature rose Azimuth Count - Percent Interval open feature rose Azimuth Count - Percent Interval stereoplot Schmidt Plot - Lower Hemisphere 6
8 10 12 14 16 18 Well: GZA / Buchanan, NY - MW-31 optical & acoustic televiewer logs Page 1 r.
I",......
~-:~
r"...
~
=-
f-"".
/"
~
/'
~
~
~ ~
V
~ /
~
~
20 22 24 26 28 30 32 34 Well: GZA / Buchanan, NY - MW-31 optical & acoustic televiewer logs Page 2
\\
~ '
r., -. """c
~.>
~
1'-
,:c- --.
~
~.
'0 I-
- ~-~ ~ ;:.
~
r "Wi:,
... ~.' ";
c
... ~.::!:: ~
~
"'~:,§
~. r'
\\
rr v
~
~ v
~
~
~
! ~
~)
~
~.
,~....,-.
"~
~
- ..'. ~
~
I
~~ ~
t--
/,?
~.
A
- t:.
~!
, ~
'" ',,-. r
~f "
. h ~ Z '~~iI
\\. ~-
t fir...
'--' ~ ~
'U Ul.
~
.;(,
A
'"'II.. -
- 'i'-': ' ~f
36 38 40 42 44 46 48 50 0° 180° 0° 180° 0° 180° Well: GZA / Buchanan, NY - MW-31 optical & acoustic televiewer logs Page 3
52 54 56 58 60 62 64 66 Well: GZA / Buchanan, NY - MW-31 optical & acoustic televiewer logs Page 4
68 70 72 74 76 78 80 82 Well: GZA / Buchanan, NY - MW-31 optical & acoustic televiewer logs Page 5
84 86 88 90 Well: GZA / Buchanan, NY - MW-31 optical & acoustic televiewer logs Page 6
Project - Well: GZA / Buchanan, NY - MW-32 conventional logs Depth 1in:16ft FTemp (deg C) 16.8 22.8 Comments FRes (ohm-m) 12 28 caliper (inches; recalibrated) 3.5 5
ambient flow (gpm)
-0.3 0.3 pumping flow (gpm)
-0.3 0.3 zero pumping flow
-0.3 0.3 zero ambient flow
-0.3 0.3 tilt-corrected planar features 0
90 0
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 205 210 all depths in feet below top of casing; steel casing to approximately 8 feet deep; water level near 37 feet deep at time of logging under ambient conditions, water entered the well between the casing bottom & 46 feet deep, & flowed downward; all water discharged while pumping also apparently entered in this depth range (probably at the FTemp & FRes inflections near 40 &
42 feet deep) additional downward flow entered between 46 to 52 feet deep, during both ambient & pumping conditions (probably at the 50-foot deep caliper enlargement) additional inflow entered between 52 to 60 feet deep, during both ambient
& pumping conditions (probably at the 54-foot deep FRes inflection) during ambient conditions, downward inflow entered between 75 to 90 feet deep (possibly at subtle FRes slope changes near 78 & 86 feet deep) additional downward flow entered between 115 to 130 feet deep, during both ambient & pumping conditions (possibly at a very subtle FRes slope changes near 118, 122, & 127 feet deep) downward flow exited the borehole at a zone of lower hydraulic head, under both ambient & pumping conditions, between 170 to 180 feet deep (probably near the 177-foot FTemp &
FRes slope changes) downward flow exited the borehole at a zone of lower hydraulic head, under both ambient & pumping conditions, between 180 to 190 feet deep (possibly at the FTemp slope change near 187 feet deep) most remaining downward flow exited the borehole between 190 to 195 feet deep, under both ambient &
pumping conditions 105836 - mw32.wcl Well: GZA / Buchanan, NY - MW-31 optical & acoustic televiewer logs
Project - Well: GZA / Buchanan, NY - MW-32 optical & acoustic televiewer logs Depth 1in:1ft Tilt 0
4 Mag 44 53 Azimuth 0
360 ABI40 amplitude 0° 0° 180° 90° 270° ABI40 traveltime 0° 0° 180° 90° 270° OBI40 image 0° 0° 180° 90° 270° Azimuth ob 0
360 deg Tilt ob 0
4 deg RBR ob 0
360 deg caliper (inches; recalibrated) 3.8 5.3 pper OBI40 image (rotated by -238.7 deg 0° 0° 180° 90° 270° planar ABI features 0° 0° 180° 90° 270° 6
8 10 12 14 16 Well: GZA / Buchanan, NY - MW-32 optical & acoustic televiewer logs Page 1
18 20 22 24 26 28 30 32 Well: GZA / Buchanan, NY - MW-32 optical & acoustic televiewer logs Page 2
)
1><
... ~.
I \\
~
(
I "
I*.-
-,--0,
I- -
(
... ~ -
l'-
c-1 ' ;:::.
J
'=
~
~
l
~
c-
~""
~
~ : -~.
I
~
!~
I ;~!,~
'-co
~ > I"
\\
~.. -~
.:~
34 36 38 40 42 44 46 48 Well: GZA / Buchanan, NY - MW-32 optical & acoustic televiewer logs Page 3
50 52 54 56 58 60 62 64 Well: GZA / Buchanan, NY - MW-32 optical & acoustic televiewer logs Page 4
66 68 70 72 74 76 78 80 Well: GZA / Buchanan, NY - MW-32 optical & acoustic televiewer logs Page 5
82 84 86 88 90 92 94 96 Well: GZA / Buchanan, NY - MW-32 optical & acoustic televiewer logs Page 6
98 100 102 104 106 108 110 112 Well: GZA / Buchanan, NY - MW-32 optical & acoustic televiewer logs Page 7
114 116 118 120 122 124 126 128 Well: GZA / Buchanan, NY - MW-32 optical & acoustic televiewer logs Page 8
Project - Well: GZA / Buchanan, NY - MW-34 conventional logs Depth 1in:5ft FTemp (deg C) 8 17.8 FRes (ohm-m) 16 22 caliper (inches) 3 5
Comments ambient flow (gpm)
-0.5 0.5 zero ambient flow
-0.5 0.5 pumping flow (gpm)
-0.5 0.5 zero pumping flow
-0.5 0.5 tilt-corrected planar features 0
90 0
5 10 15 20 25 30 all depths in feet below top of 4-inch steel casing; steel casing to approximately 5 feet deep; water level near 8.3 feet deep at time of logging; transducers were removed from well immediatedly prior to logging (see text) inflow while pumping entered between 13 to 18 feet deep (possibly near the 16-foot deep FTemp & FRes inflections, & caliper enlargement) very weak upward flow while pumping may have entered between 24 to 28 feet deep 105836 - mw34.wcl Well: GZA / Buchanan, NY - MW-34 conventional logs
Project - Well: GZA / Buchanan, NY - MW-34 acoustic televiewer log Depth 1in:1ft Tilt 0
4 Mag 0
80 Azimuth 0
360 ABI40 amplitude 0° 0° 180° 90° 270° ABI40 traveltime 0° 0° 180° 90° 270° caliper (inches) 3 5
8 10 12 14 16 18 20 Well: GZA / Buchanan, NY - MW-34 acoustic televiewer log Page 1
22 24 26 28 Well: GZA / Buchanan, NY - MW-34 acoustic televiewer log Page 2
Project - Well: GZA / Buchanan, NY - MW-35 conventional logs Depth 1in:5ft FTemp (deg C) 8.8 18 FRes (ohm-m) 10 30 caliper (inches) 3 4
Comments ambient flow (gpm)
-0.2 0.2 zero ambient flow
-0.2 0.2 pumping flow (gpm)
-0.2 0.2 zero pumping flow
-0.2 0.2 tilt-corrected planar features 0
90 0
5 10 15 20 25 30 all depths in feet below ground surface; steel casing to approximately 6.5 feet deep; water level near 8.7 feet deep at time of logging; diesel fuel floating on water surface at time of logging; see text for description of anomalies during flowmeter tests upward ambient flow apparently exited at a zone of lower hydraulic head, less than 13 feet deep (possibly near the static water level) most inflow (during both ambient &
pumping conditions) apparently entered between 13 to 18 feet deep (possibly near the FTemp &/or FRes slope changes near 13.5 & 15 feet)
FRes & FTemp inflections suggest hydraulically active zones near 18 to 20, &
possibly 22, feet deep weak inflow while pumping may have entered between 24 to 28 feet deep (possibly near the subtle FTemp slope changes near 26 or 27.5 feet) the FRes increase near 29 feet deep probably represents accumulated soft sediments 105836 - mw35.wcl Well: GZA / Buchanan, NY - MW-35 conventional logs
Project - Well: GZA / Buchanan, NY - MW-35 acoustic televiewer log Depth 1in:1ft ABI40 amplitude 0° 0° 180° 90° 270° ABI40 traveltime 0° 0° 180° 90° 270° upper ABI amplitude (rotated by 108.8 deg 0° 0° 180° 90° 270° planar ABI40 features 0° 0° 180° 90° 270° planar ABI40 features 0° 0° 180° 90° 270° tilt-corrected planar features 0
90 3D ABI40 image 0° less-open feature rose Azimuth Count - Percent Interval open feature rose Azimuth Count - Percent Interval stereoplot Schmidt Plot - Lower Hemisphere 10 12 14 16 18 20 22 0° 180° 0° 180° 0° 180° Well: GZA / Buchanan, NY - MW-35 acoustic televiewer log Page 1
24 26 28 Well: GZA / Buchanan, NY - MW-35 acoustic televiewer log Page 2
Project - Well: GZA / Buchanan, NY - MW-39 conventional logs Depth 1in:14ft FTemp (deg C) 14.2 16.2 FRes (ohm-m) 0.5 4.5 caliper (inches) 3.6 5.6 ambient flow (gpm)
-0.5 0.5 zero ambient flow
-0.5 0.5 pumping flow (gpm)
-0.5 0.5 zero pumping flow
-0.5 0.5 Comments tilt-corrected planar features 0
90 5
10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 all depths in feet below top of steel casing; steel casing to approximately 23 feet deep; water level near 54 feet deep at time of logging inflow while pumping entered between 61.5 to 72 feet deep (probably at FTemp & FRes slope changes near 63 & 68 to 69 feet deep); upward ambient flow exited between 60 to 72 feet deep weak inflow while pumping may have entered between 72 to 80 feet deep upward flow (during both ambient
& pumping conditions) entered between 80 to 90 feet deep (possibly near the 84 to 87-foot deep FTemp &/or FRes inflections) upward ambient flow entered between 90 to 98 feet deep (possibly at a subtle FRes inflections near 95 feet deep);
upward flow while pumping also increased in this depth interval downward ambient flow entered between 98 to 110 feet deep (possibly at FRes & FTemp inflections & a minor caliper enlargement, all near 100 feet deep); inflow while pumping entered in this same interval, &
flowed both up towards the pump
& down towards a zone of lower hydraulic head downward flow (during both ambient & pumping conditions) exited at a zone of lower hydraulic head between 110 to 128 feet deep (possibly at very subtle FTemp slope changes near 116 & 121 feet deep) the remaining downward ambient flow exited at a zone of lower hydraulic head between 140 to 155 feet deep (possibly near a very subtle FTemp inflection near 143 feet deep) 105836 - mw39.wcl Well: GZA / Buchanan, NY - MW-39 conventional logs
Project - Well: GZA / Buchanan, NY - MW-39 acoustic televiewer log Depth 1in:1ft ABI40 amplitude 0° 0° 180° 90° 270° ABI40 traveltime 0° 0° 180° 90° 270° planar ABI40 features 0° 0° 180° 90° 270° planar ABI40 features 0° 0° 180° 90° 270° tilt-corrected planar features 0
90 less-open feature rose Azimuth Count - Percent Interval open feature rose Azimuth Count - Percent Interval stereoplot Schmidt Plot - Lower Hemisphere 54 56 58 60 62 64 66 Well: GZA / Buchanan, NY - MW-39 acoustic televiewer log Page 1
~
1'-.
~
~
I-f '\\
- f
\\
1-...
-r
- 1.
/ I "'\\
/
~ I I": -
I
'\\ ~
IT I '
I.
\\
-~ /
/:
1- -\\
.. \\ /
\\ /
~ ~ ~
t I
...,/ '"
/ "
~
7
~
.~
10-
\\
/
\\
~
/
- '\\ ""
"'--7 1-.... :/ ~
- / ~
f-
~
- -I /
~
/
~
~
V
~
-:'/
- ~
1-
'I
~.
- "J
/: ~
L
68 70 72 74 76 78 80 82 Well: GZA / Buchanan, NY - MW-39 acoustic televiewer log Page 2 I'
~ /
/
I~
-~
84 86 88 90 92 94 96 98 Well: GZA / Buchanan, NY - MW-39 acoustic televiewer log Page 3 I
J I
~
1
~
1
\\
I I"
I '
I I
100 102 104 106 108 110 112 114 Well: GZA / Buchanan, NY - MW-39 acoustic televiewer log Page 4
- ~
\\0
~
~
/'
~ /
v
~
~
v 7
- \\
. l
\\
v I.....
~
II.
\\ I~
1 "'
~ -c f'\\
~
~
10-
~
- -/.-
1\\
~
./"
I" i"--
./"
~ /
I---""
..L.
~
~
I~
~
, ~
~ V
~ ~
~
1--: '--
V
'-, r-
~
c-o ~
r-
~~
116 118 120 122 124 126 128 130 0° 180° 0° 180° 0° 180° Well: GZA / Buchanan, NY - MW-39 acoustic televiewer log Page 5
132 134 136 138 140 142 144 146 Well: GZA / Buchanan, NY - MW-39 acoustic televiewer log Page 6
148 150 152 154 156 158 160 162 Well: GZA / Buchanan, NY - MW-39 acoustic televiewer log Page 7
164 166 168 170 172 174 176 178 Well: GZA / Buchanan, NY - MW-39 acoustic televiewer log Page 8
~
I~
,1'\\
I
~
]
I J '
1:.
f-' "
c:> '~~~ ~
v K
. ~
180 182 184 186 188 190 192 194 Well: GZA / Buchanan, NY - MW-39 acoustic televiewer log Page 9
196 198 200 Well: GZA / Buchanan, NY - MW-39 acoustic televiewer log Page 10
Project - Well: GZA / Buchanan, NY - MW-40 conventional logs Depth 1in:15ft FTemp (deg C) 12.3 16.3 FRes (ohm-m)
-5
-3 caliper (inches) 3 7
Comments ambient flow (gpm)
-0.3 0.3 zero ambient flow
-0.3 0.3 pumping flow (gpm)
-0.3 0.3 zero pumping flow
-0.3 0.3 0
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 all depths in feet below ground surface; steel casing to approximately 7 feet deep; water level near 15 feet deep at time of logging downward inflow entered less than 22 feet deep during both ambient & pumping conditions (probably at the 20.5-foot deep caliper enlargement &
corresponding FRes slope change) ambient downward inflow entered between 22 to 25 feet deep (possibly at the 22.5-foot deep minor caliper enlargement) downward flow entered between 25 to 30 feet deep during both ambient & pumping conditions (probably near the 26-foot deep caliper enlargement &
corresponding FRes/FTemp slope changes) downward flow entered during betwen 30 to 40 feet deep during both ambient & pumping conditions (possibly at the 34.5-foot deep minor caliper enlargement, &/or subtle FTemp slope changes near 31, 33.5, &
39 feet deep) some ambient downward flow may have exited at a zone of lower hydraulic head between 40 to 60 feet deep (possibly at the subtle FTemp &/or FRes slope changes near 40, 43 to 44, 48, 55, or 59 feet deep) subtle FTemp &/or FRes inflections may represent hydraulically active zones near 62, 65, 67, & 74 to 75 feet deep) downward flow exited the borehole at a zone of lower hydraulic head between 80 to 100 feet deep, probably at the FTemp & FRes slope changes near 83 feet deep 105836 - mw40.wcl Well: GZA / Buchanan, NY - MW-40 conventional logs
Project - Well: GZA / Buchanan, NY - MW-40 acoustic televiewer log Depth 1in:1ft Tilt 0
6 Mag 50 70 Azimuth 0
360 ABI40 amplitude 0° 0° 180° 90° 270° ABI40 traveltime 0° 0° 180° 90° 270° 16 18 20 22 24 26 28 Well: GZA / Buchanan, NY - MW-40 acoustic televiewer log Page 1
30 32 34 36 38 40 42 44 Well: GZA / Buchanan, NY - MW-40 acoustic televiewer log Page 2
46 48 50 52 54 56 58 60 Well: GZA / Buchanan, NY - MW-40 acoustic televiewer log Page 3
62 64 66 68 70 72 74 76 Well: GZA / Buchanan, NY - MW-40 acoustic televiewer log Page 4
78 80 82 84 86 88 90 92 Well: GZA / Buchanan, NY - MW-40 acoustic televiewer log Page 5
94 96 98 100 102 104 106 108 Well: GZA / Buchanan, NY - MW-40 acoustic televiewer log Page 6
110 112 114 116 118 120 122 124 Well: GZA / Buchanan, NY - MW-40 acoustic televiewer log Page 7
126 128 130 132 134 136 138 140 Well: GZA / Buchanan, NY - MW-40 acoustic televiewer log Page 8
142 144 146 148 150 152 154 156 Well: GZA / Buchanan, NY - MW-40 acoustic televiewer log Page 9
158 160 162 164 166 168 170 172 Well: GZA / Buchanan, NY - MW-40 acoustic televiewer log Page 10
Project - Well: GZA / Buchanan, NY - MW-51 conventional logs Depth 1in:14ft FTemp (deg C) 12.3 14.3 FRes (ohm-m)
-4 1
caliper (inches) 3.5 4.5 Comments ambient flow (gpm)
-0.4 0.4 zero ambient flow
-0.4 0.4 pumping flow (gpm)
-0.4 0.4 zero pumping flow
-0.4 0.4 5
10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 all depths in feet below ground surface; steel casing to approximately 20 feet deep; water level near 28 feet deep at time of logging ambient downward inflow entered less than 31 feet deep downward ambient flow increased between 31 to 40 feet deep (possibly near the 32-foot deep FRes & FTemp inflections, &
other subtle FTemp inflections between 34 to 40 feet deep) upward flow while pumping entered between 40 to 47 feet deep (possibly near the 43-foot deep subtle FRes slope change);
ambient downward flow also increased in this depth interval most inflow while pumping entered between 47 to 55 feet deep (possibly near the 49-foot deep FRes inflection, & 52-foot deep FTemp inflection) ambient downward flow increased between 55 to 70 feet deep inflow while pumping entered between 70 to 85 feet deep; some downward ambient flow also exited at a zone of lower hydraulic head in this depth interval inflow while pumping increased between 85 to 100 feet deep (possibly near very subtle FTemp inflections near 88 to 90 feet deep); some ambient downward flow also apparently exited at a zone of lower hydraulic head in this depth interval inflow while pumping entered between 100 to 114 feet deep (probably at the distinct FRes &
FTemp inflections near 113 feet deep); most ambient downward flow exited at a zone of lower hydraulic head in this depth range upward flow while pumping entered between 114 to 130 feet deep (probably at numerous small FTemp & FRes inflections); weak ambient downward inflow also entered in this depth range very weak inflow while pumping may have entered between 130 to 144 feet deep very weak inflow while pumping may have originated between 144 to 159 feet deep some weak ambient downward flow may have exited at a zone of lower hydraulic head, between 159 to 176 feet deep the remaining very weak ambient downward flow apparently exited at a zone of lower hydraulic head greater than 190 feet deep 105836 - mw51.wcl Well: GZA / Buchanan, NY - MW-51 conventional logs
Project - Well: GZA / Buchanan, NY - MW-51 acoustic televiewer log Depth 1in:1.5ft Tilt 0
3 Mag 53 62 Azimuth 0
360 ABI40 amplitude 0° 0° 180° 90° 270° ABI40 traveltime 0° 0° 180° 90° 270° caliper (inches) 3.5 4.5 planar ABI40 features 0° 0° 180° 90° 270° 28 30 32 34 36 38 40 42 44 46 48 Well: GZA / Buchanan, NY - MW-51 acoustic televiewer log Page 1
50 52 54 56 58 60 62 64 66 68 70 72 Well: GZA / Buchanan, NY - MW-51 acoustic televiewer log Page 2
74 76 78 80 82 84 86 88 90 92 94 96 98 Well: GZA / Buchanan, NY - MW-51 acoustic televiewer log Page 3
100 102 104 106 108 110 112 114 116 118 120 122 Well: GZA / Buchanan, NY - MW-51 acoustic televiewer log Page 4
124 126 128 130 132 134 136 138 140 142 144 146 148 Well: GZA / Buchanan, NY - MW-51 acoustic televiewer log Page 5
150 152 154 156 158 160 162 164 166 168 170 172 Well: GZA / Buchanan, NY - MW-51 acoustic televiewer log Page 6
174 176 178 180 182 184 186 188 190 192 194 196 Well: GZA / Buchanan, NY - MW-51 acoustic televiewer log Page 7
198 Well: GZA / Buchanan, NY - MW-51 acoustic televiewer log Page 8
138 140 142 144 146 148 150 152 Well: GZA / Buchanan, NY - MW-51 acoustic televiewer log Page 9 l~
,I
[t
~
- \\'
I t-...
---'/
~
~
'/
~~
~
l?
c.----
r "
~ "
~
V
-/ ---
~
~
)
/ ~
/ "\\
1, \\
1/
/
r--
\\ \\
l/
J
[\\.
~
V
/
~
r----'"
-../
I
/'"
r-
~
il
'/
154 156 158 160 162 164 166 168 Well: GZA / Buchanan, NY - MW-51 acoustic televiewer log Page 10 N
~ ;
f!:'
I,
[: \\
Ii
')!
0
~
f r :.-
(, t-,
r:
~~
~
~ --
/
r-
/ ~
~ /
~~
J I ~
i
!"1
/
~
~~
/
./
~
/'
~./
I~~
~
/
I'---.
~~
~
[.,
I-
% ~ % s
~
0-r-..
~ y ::::=
~
~
~
~ ;: ~
~
~
~
/
/
':li ~ -
/'
~
V
~
/
~
V
~
v I~
~ ~ ;'
/'
~ /'
Ii
/. I~
/' ~
170 172 174 176 178 180 182 184 Well: GZA / Buchanan, NY - MW-51 acoustic televiewer log Page 11 1/
f-l-l-++-+-k++-f<::",,+----iv-r-
~ v Ws
-kE I '
~
~
~
j-.
V V-
~ /'
t------
t---
~
V
~
~
I-t-V V
r--.
186 188 190 Well: GZA / Buchanan, NY - MW-51 acoustic televiewer log Page 12
Project - Well: GZA / Buchanan, NY - MW-52 conventional logs Depth 1in:15ft FTemp (deg C) 15.1 18.6 FRes (ohm-m)
-2 20 caliper (inches) 2.5 4.5 Comments ambient flow (gpm)
-0.3 0.3 zero ambient flow
-0.3 0.3 pumping flow (gpm)
-0.3 0.3 zero pumping flow
-0.3 0.3 tilt-corrected planar features 0
90 0
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 205 all depths in feet below ground surface; steel casing to approximately 13 feet deep; water level near 12 feet deep at time of logging; a pressure transducer, sampling pump, & related tubing
& wires were removed from this well immediately prior to logging, thereby disturbing the water column's FTemp & FRes properties weak inflow while pumping may have entered between 18 to 30 feet deep (possibly at the FRes slope changes near 20 & 27 feet);
very weak downward ambient flow may have entered between 18 to 22 feet deep, & exited at a zone of lower hydraulic head between 22 to 30 feet weak inflow while pumping may have entered between 43 to 56 feet deep (possibly near the subtle FRes &/or FTemp slope changes near 44, 47, & 53 feet deep); weak downward ambient flow may also have entered in this depth range very weak inflow while pumping may have entered between 56 to 70 feet deep (possibly near the subtle FTemp &/or FRes slope changes near 59, 62, & 64 feet deep); weak ambient downward flow may also have exited at a zone of lower hydraulic head in this depth range very weak ambient downward flow may have entered between 70 to 83 feet deep (possibly at the subtle FRes & FTemp inflections near 77 feet deep) very weak ambient downward flow may have exited betwen 83 to 95 feet deep very weak ambient downward flow may have entered between 95 to 110 feet deep (possibly at the subtle FRes & FTemp inflections near 101 & 104 feet) weak ambient downward flow may have entered betwen 110 to 126 feet deep (possibly near the 124-foot deep caliper enlargement & open planar fractures, or the subtle FTemp slope change near 115 feet deep) subtle FTemp & FRes inflections may represent a hydraulically active zone near 135 to 139 feet deep weak inflow while pumping may have entered between 140 to 155 feet deep; weak ambient downward flow may also have exited in this depth interval downward ambient flow entered between 155 to 171 feet deep downward flow may have entered during both ambient & pumping conditions, between 171 to 182 feet deep downward flow exited at a zone of lower hydraulic head greater than 182 feet deep, during both ambient & pumping conditions the FRes increase & caliper decrease near 190 feet deep represent accumulated drilling sediments (rock flour) 105836 - mw52.wcl Well: GZA / Buchanan, NY - MW-52 conventional logs
Project - Well: GZA / Buchanan, NY - MW-52 acoustic televiewer log Depth 1in:1ft ABI40 amplitude 0° 0° 180° 90° 270° ABI40 traveltime 0° 0° 180° 90° 270° planar ABI features 0° 0° 180° 90° 270° planar ABI features 0° 0° 180° 90° 270° tilt-corrected planar features 0
90 less-open feature rose Azimuth Count - Percent Interval open feature rose Azimuth Count - Percent Interval stereoplot Schmidt Plot - Lower Hemisphere 12 14 16 18 20 22 24 Well: GZA / Buchanan, NY - MW-52 acoustic televiewer log Page 1
26 28 30 32 34 36 38 40 Well: GZA / Buchanan, NY - MW-52 acoustic televiewer log Page 2
42 44 46 48 50 52 54 56 Well: GZA / Buchanan, NY - MW-52 acoustic televiewer log Page 3
58 60 62 64 66 68 70 72 Well: GZA / Buchanan, NY - MW-52 acoustic televiewer log Page 4
74 76 78 80 82 84 86 88 Well: GZA / Buchanan, NY - MW-52 acoustic televiewer log Page 5
90 92 94 96 98 100 102 104 0° 180° 0° 180° 0° 180° Well: GZA / Buchanan, NY - MW-52 acoustic televiewer log Page 6
106 108 110 112 114 116 118 120 Well: GZA / Buchanan, NY - MW-52 acoustic televiewer log Page 7
122 124 126 128 130 132 134 136 Well: GZA / Buchanan, NY - MW-52 acoustic televiewer log Page 8
~
v
~ /'
~
~
~
0 ~
~
- " :-c
~~
"-I-P ~~ ?,
/
. ~
V ~~ ~
I
- 1 __
~
+p
~
~...,.,
~
.... c'l
~
[I 1\\
11.'
~ll!
f:
H t-V ~
~ /
~
- r--
V ~
~ v ~
I;~
r-/
_/
- .;.~
p;
138 140 142 144 146 148 150 152 Well: GZA / Buchanan, NY - MW-52 acoustic televiewer log Page 9 l~
,I
[t
~
- \\'
I t-...
---'/
~
~
'/
~~
~
l?
c.----
r "
~ "
~
V
-/ ---
~
~
)
/ ~
/ "\\
1, \\
1/
/
r--
\\ \\
l/
J
[\\.
~
V
/
~
r----'"
-../
I
/'"
r-
~
il
'/
154 156 158 160 162 164 166 168 Well: GZA / Buchanan, NY - MW-52 acoustic televiewer log Page 10 N
~ ;
f!:'
I,
[: \\
Ii
')!
0
~
f r :.-
(, t-,
r:
~~
~
~ --
/
r-
/ ~
~ /
~~
J I ~
i
!"1
/
~
~~
/
./
~
/'
~./
I~~
~
/
I'---.
~~
~
[.,
I-
% ~ % s
~
0-r-..
~ y ::::=
~
~
~
~ ;: ~
~
~
~
/
/
':li ~ -
/'
~
V
~
/
~
V
~
v I~
~ ~ ;'
/'
~ /'
Ii
/. I~
/' ~
170 172 174 176 178 180 182 184 Well: GZA / Buchanan, NY - MW-52 acoustic televiewer log Page 11 1/
f-l-l-++-+-k++-f<::",,+----iv-r-
~ v Ws
-kE I '
~
~
~
j-.
V V-
~ /'
t------
t---
~
V
~
~
I-t-V V
r--.
186 188 190 Well: GZA / Buchanan, NY - MW-52 acoustic televiewer log Page 12
Geophysical Applications Appendix B Planar-feature Orientations Measured from Acoustic Televiewer Logs
Fracture Orientations Interpreted from MW-30 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw30i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 12.43 73.7 62.7 less-open 13.14 63.9 66.6 less-open Note that down-dip compass azimuth 13.38 48.5 66.9 less-open is perpendicular to the strike direction.
13.89 316.3 61.1 less-open 14.29 137.6 60.9 less-open Note that interpreted down-dip compass 14.61 113.4 54.5 less-open azimuths are with respect to 15.20 170.0 58.7 less-open magnetic north.
15.79 143.1 50.6 less-open 15.91 161.0 79.3 less-open Down-dip azimuths & dip angles were 16.75 226.4 67.8 less-open corrected for borehole deviation from 16.91 194.7 78.6 less-open vertical.
17.09 161.4 60.0 less-open 17.21 142.2 69.7 less-open 18.38 73.2 70.2 less-open 19.43 29.1 43.8 less-open 19.75 108.2 38.3 less-open 20.01 224.4 28.0 less-open 20.45 203.3 24.3 less-open 20.52 51.6 61.4 less-open 20.97 328.2 61.3 less-open 21.94 270.5 40.0 less-open 22.08 310.2 75.2 less-open 23.31 194.2 37.0 less-open 23.55 316.6 68.4 less-open 23.73 246.0 21.6 less-open 24.09 140.7 39.0 less-open 24.50 152.3 43.3 less-open 24.83 174.2 24.4 less-open 25.04 249.8 26.7 less-open 25.29 160.3 30.5 less-open 25.62 200.1 20.9 less-open 26.15 138.5 24.3 less-open 26.95 222.6 31.1 less-open 27.61 197.7 49.5 less-open 27.66 49.2 44.1 less-open 28.36 269.6 68.4 less-open 29.50 255.6 22.9 less-open 30.14 119.8 40.4 less-open 32.29 151.6 39.7 less-open 32.64 85.1 52.9 less-open 32.73 83.2 36.8 less-open 33.07 112.3 73.0 less-open 33.23 94.4 54.6 less-open 33.26 313.6 82.7 less-open Page 1 of 4
Fracture Orientations Interpreted from MW-30 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw30i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 33.57 141.2 63.3 less-open 34.29 315.6 68.3 less-open 34.46 168.6 63.4 less-open 35.59 151.6 72.1 less-open 35.61 290.2 75.7 less-open 36.09 310.1 39.9 less-open 37.59 244.8 53.0 less-open 37.80 140.9 78.2 less-open 38.51 114.6 78.5 less-open 39.67 308.4 69.0 less-open 41.54 185.5 53.9 less-open 43.38 165.0 63.7 less-open 44.26 177.8 63.7 less-open 44.96 226.7 59.0 less-open 45.70 23.9 33.5 less-open 45.89 148.2 75.6 less-open 46.07 203.62 70.35 less-open 46.13 332.99 79.09 less-open 46.72 102.0 45.2 less-open 47.04 105.6 51.3 less-open 47.46 93.7 21.0 open 48.73 70.8 68.1 less-open 49.35 249.2 33.3 less-open 49.84 214.1 12.9 less-open 50.99 283.2 55.2 less-open 51.23 315.3 49.1 less-open 51.40 124.3 14.2 less-open 51.59 317.6 52.7 less-open 52.45 85.7 36.4 less-open 52.91 101.0 66.5 less-open 53.44 80.8 43.1 open 53.61 91.6 43.6 open 54.48 287.2 38.3 less-open 55.31 274.9 16.6 less-open 56.84 63.9 58.8 less-open 57.34 72.1 63.9 less-open 57.78 97.0 58.5 less-open 58.59 303.4 63.0 less-open 58.98 288.8 62.5 less-open 59.13 179.1 63.4 less-open 59.90 321.0 41.8 less-open 60.36 175.2 44.3 less-open 60.44 315.2 56.9 less-open 60.45 78.9 61.5 less-open Page 2 of 4
Fracture Orientations Interpreted from MW-30 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw30i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 60.68 96.1 73.6 less-open 61.30 75.6 75.9 less-open 61.41 103.2 77.8 less-open 61.55 254 73.52 less-open 61.73 74.96 65.95 less-open 61.82 290.3 41.2 less-open 62.24 268.3 51.6 less-open 62.47 89.2 50.8 less-open 62.70 311.2 43.6 less-open 63.25 304.4 37.5 less-open 63.38 87.5 51.2 less-open 63.50 325.4 55.4 less-open 63.72 238.9 29.7 less-open 64.04 95.2 73.6 less-open 64.38 87.1 68.2 less-open 64.53 280.0 51.7 less-open 64.61 295.5 48.5 less-open 64.90 74.6 31.0 less-open 64.97 85.4 70.3 less-open 65.01 313.3 78.0 less-open 65.51 359.9 52.5 less-open 65.75 170.2 78.9 less-open 65.86 324.3 43.7 less-open 66.06 105.7 51.6 less-open 66.28 62.5 68.9 less-open 66.74 340.3 49.6 less-open 66.97 358.6 55.5 less-open 67.33 5.8 56.8 less-open 67.77 1.3 54.6 less-open 68.07 5.4 46.9 less-open 68.36 338.9 47.3 less-open 68.58 207.9 71.8 less-open 69.24 302.5 48.3 less-open 69.78 121.9 57.0 less-open 69.85 201.0 60.4 less-open 70.55 295.3 38.8 less-open 71.09 270.1 26.7 less-open 71.44 187.9 48.3 less-open 71.75 203.4 59.7 less-open 72.14 93.1 65.7 less-open 72.41 187.4 56.0 less-open 73.92 255.3 27.0 less-open 74.06 178.9 59.6 less-open 74.29 162.8 60.1 less-open Page 3 of 4
Fracture Orientations Interpreted from MW-30 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw30i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 74.74 330.0 46.9 less-open 75.26 332.0 52.9 less-open 75.96 307.2 5.1 less-open 76.15 296.8 7.5 less-open 76.57 174.6 12.0 less-open Page 4 of 4
Fracture Orientations Interpreted from MW-31 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw31i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 6.66 309.5 13.0 less-open 8.02 253.5 39.4 less-open Note that down-dip compass azimuth 9.39 111.5 14.7 less-open is perpendicular to the strike direction.
11.06 3.0 9.2 less-open 11.30 336.8 28.1 open Note that interpreted down-dip compass 13.42 330.4 43.4 open azimuths are with respect to 16.17 153.4 17.5 open magnetic north.
16.36 302.8 52.6 open 20.71 329.9 27.5 less-open Down-dip azimuths & dip angles were 22.32 308.2 19.9 less-open corrected for borehole deviation from 26.95 90.7 18.3 less-open vertical.
28.63 321.0 53.7 less-open 31.97 311.9 40.8 open 32.06 322.1 54.2 less-open 32.11 151.2 53.1 less-open 32.21 154.2 51.7 less-open 33.22 321.4 68.7 less-open 33.24 233.0 75.5 less-open 33.50 301.4 51.0 less-open 35.06 174.5 80.3 less-open 35.83 17.2 12.6 less-open 37.00 322.2 43.3 less-open 37.84 109.0 53.4 less-open 38.32 103.4 43.7 less-open 38.56 107.8 57.5 less-open 39.16 314.1 49.7 less-open 39.23 310.3 46.8 less-open 39.83 278.0 50.9 less-open 40.76 296.0 45.6 less-open 45.11 298.1 39.6 less-open 45.25 58.9 53.2 less-open 45.77 96.2 64.7 less-open 46.06 307.2 50.9 less-open 46.42 307.6 54.0 less-open 46.75 291.4 42.1 less-open 46.94 291.6 24.8 open 47.29 293.8 41.7 less-open 48.40 297.4 48.6 less-open 48.68 85.2 54.9 less-open 48.76 88.5 30.3 less-open 49.71 151.9 47.6 less-open 50.27 289.9 58.5 less-open 50.33 314.1 57.5 less-open 50.41 293.8 45.3 less-open Page 1 of 3
Fracture Orientations Interpreted from MW-31 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw31i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 50.50 274.2 56.8 less-open 51.03 291.2 45.0 less-open 51.26 294.8 47.6 less-open 51.61 176.4 59.3 less-open 51.84 295.2 44.9 less-open 51.97 319.0 66.5 less-open 52.13 152.8 54.8 less-open 52.52 153.8 51.2 less-open 54.49 274.9 44.2 less-open 55.11 298.3 48.5 less-open 55.38 102.0 51.3 less-open 56.26 176.9 43.2 less-open 56.41 243.7 57.5 less-open 57.24 156.7 55.3 less-open 57.42 302.6 53.9 less-open 57.63 299.2 50.3 less-open 57.94 148.45 58.11 less-open 58.16 158.18 56.73 less-open 58.61 146.8 55.2 less-open 58.87 142.9 57.6 less-open 59.13 150.9 27.2 less-open 59.25 120.7 24.9 less-open 60.39 136.2 58.2 less-open 60.55 271.5 71.8 less-open 60.71 105.6 51.4 less-open 61.20 318.0 44.6 less-open 61.46 320.5 48.9 less-open 61.87 166.7 60.7 less-open 62.28 289.4 47.3 less-open 63.31 135.6 63.8 less-open 63.75 296.0 41.7 less-open 64.37 284.5 50.6 less-open 65.53 335.1 37.2 less-open 65.66 189.6 77.6 less-open 66.06 179.4 39.6 less-open 68.05 140.6 64.8 less-open 70.47 139.7 66.4 less-open 73.96 116.7 52.0 less-open 74.13 130.3 57.3 less-open 74.32 312.2 28.0 less-open 74.48 335.6 23.5 less-open 76.08 328.6 35.0 less-open 76.57 149.9 53.5 open 76.87 150.7 55.1 less-open Page 2 of 3
Fracture Orientations Interpreted from MW-31 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw31i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 79.01 146.9 53.4 less-open 79.75 349.5 32.4 less-open 80.19 139.4 52.3 less-open 80.38 139.33 46.85 less-open 81.2 338.95 62.7 less-open 81.38 69.3 57.8 less-open 81.61 141.9 48.3 less-open 82.58 160.3 44.5 less-open 83.33 316.2 44.0 less-open 83.66 130.8 51.4 less-open 84.43 144.4 46.8 less-open 85.55 187.4 79.6 less-open 86.15 136.5 47.6 less-open 86.69 284.9 44.0 less-open 87.06 74.7 59.1 less-open 87.53 115.6 53.4 less-open 88.84 46.1 3.3 less-open 89.43 314.6 4.8 less-open Page 3 of 3
Fracture Orientations Interpreted from MW-32 Acoustic Televiewer Log (optical televiewer above water level)
Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw32i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 8.47 146.8 33.3 less-open 8.85 240.9 28.7 less-open Note that down-dip compass azimuth 10.36 116.9 40.8 less-open is perpendicular to the strike direction.
10.75 293.9 31.3 open 10.75 93.2 31.1 less-open Note that interpreted down-dip compass 11.17 19.7 31.7 less-open azimuths are with respect to 11.94 172.8 54.2 less-open magnetic north.
12.35 163.9 41.8 less-open 12.50 325.8 45.2 less-open Down-dip azimuths & dip angles were 12.91 166.5 57.6 less-open corrected for borehole deviation from 14.55 138.5 52.7 less-open vertical.
16.18 180.3 22.6 open 16.58 114.1 13.6 less-open 16.83 207.3 12.5 less-open 17.83 283.1 42.5 less-open 19.94 124.4 61.9 less-open 21.35 294.8 33.1 open 21.36 23.0 64.3 less-open 22.02 188.2 22.6 less-open 22.34 135.9 57.8 less-open 22.51 125.7 59.9 less-open 23.50 181.7 67.2 less-open 23.70 292.9 40.4 less-open 23.72 131.0 21.5 less-open 24.16 136.2 47.6 less-open 24.31 143.5 36.8 less-open 24.53 132.9 30.1 less-open 24.95 199.6 46.4 less-open 26.26 106.6 40.3 less-open 26.55 162.6 35.5 less-open 26.78 184.4 40.1 less-open 27.47 144.1 68.0 less-open 28.14 83.6 70.8 less-open 29.29 190.3 58.0 less-open 29.91 150.1 63.9 less-open 30.50 176.9 65.9 less-open 31.43 136.2 61.4 less-open 31.86 313.1 63.7 less-open 32.33 144.8 64.8 less-open 32.92 143.5 66.4 less-open 35.05 136.2 67.4 less-open 36.69 160.6 58.3 less-open 37.38 155.8 49.1 less-open 38.05 155.8 47.9 less-open Page 1 of 11
Fracture Orientations Interpreted from MW-32 Acoustic Televiewer Log (optical televiewer above water level)
Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw32i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 38.53 152.0 40.5 less-open 38.75 190.3 52.5 less-open 39.04 145.3 55.6 less-open 39.46 314.9 44.2 less-open 39.73 152.6 61.1 less-open 40.06 28.9 17.6 less-open 40.39 313.5 44.7 less-open 40.64 153.8 54.7 less-open 41.63 137.8 61.4 less-open 41.89 134.9 64.7 less-open 41.90 154.9 65.2 less-open 42.37 199.6 47.9 less-open 42.62 171.19 56.12 less-open 42.67 117.18 43.78 less-open 43.06 127.8 54.7 less-open 43.16 142.8 52.3 less-open 43.84 152.0 49.3 less-open 45.14 305.5 19.2 less-open 45.41 156.0 54.3 less-open 45.71 170.8 54.3 less-open 45.82 153.4 51.2 less-open 46.54 173.6 37.5 less-open 47.08 172.8 41.0 less-open 47.39 153.3 47.1 less-open 47.52 173.3 47.2 less-open 48.03 168.8 63.9 less-open 48.38 180.5 66.6 less-open 48.80 118.8 64.3 less-open 48.94 157.3 44.2 less-open 49.01 190.1 58.5 less-open 49.27 147.2 37.7 less-open 49.46 163.4 60.5 open 49.58 168.6 62.5 open 49.78 169.8 52.2 open 50.23 172.6 31.9 open 50.82 155.0 45.5 open 51.14 131.4 39.8 open 51.99 159.7 50.9 less-open 52.12 131.2 53.1 less-open 52.40 136.7 53.5 less-open 53.27 268.6 63.7 less-open 53.31 118.3 49.9 less-open 53.42 263.8 64.3 less-open 53.92 109 62.27 less-open Page 2 of 11
Fracture Orientations Interpreted from MW-32 Acoustic Televiewer Log (optical televiewer above water level)
Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw32i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 54.08 112.88 61.84 less-open 54.33 314.3 65.6 less-open 54.45 115.3 49.9 less-open 54.46 81.4 76.1 open 54.80 121.3 41.1 less-open 55.28 99.7 54.3 less-open 55.65 114.5 58.3 open 55.90 133.5 54.8 open 56.30 118.6 39.5 open 56.73 143.5 51.8 less-open 57.22 147.1 46.4 less-open 58.19 152.6 77.4 less-open 58.21 121.0 35.3 less-open 58.55 153.4 43.5 less-open 58.74 332.97 53.54 less-open 59.16 137.26 45 less-open 59.24 272.1 54.5 less-open 59.64 155.0 36.6 less-open 59.80 167.5 41.8 less-open 59.94 291.7 57.0 less-open 59.99 147.1 44.6 less-open 60.15 312.2 62.8 less-open 60.41 132.1 45.7 less-open 60.65 150.8 44.1 less-open 60.86 134.2 49.9 less-open 61.05 255.3 57.4 less-open 61.22 137.2 47.3 less-open 61.26 264.1 61.5 less-open 61.49 132.8 47.0 less-open 61.62 165.7 45.4 less-open 61.79 125.0 47.7 less-open 61.91 141.6 48.6 less-open 62.03 151.8 44.3 less-open 62.29 262.0 66.1 less-open 62.47 15.1 41.6 less-open 62.83 126.1 41.3 less-open 62.95 263.1 54.5 less-open 62.99 141.5 52.0 less-open 63.21 137.8 43.3 less-open 63.68 150.8 52.0 less-open 64.09 136.8 43.4 less-open 64.29 145.6 40.1 less-open 64.86 151.3 43.2 less-open 64.98 129.8 52.6 less-open Page 3 of 11
Fracture Orientations Interpreted from MW-32 Acoustic Televiewer Log (optical televiewer above water level)
Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw32i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 65.44 144.2 45.6 less-open 65.61 103.9 46.9 less-open 65.8 271.5 68.7 less-open 67.89 133.8 48.6 less-open 68.34 127.4 50.2 less-open 68.77 136.5 50.6 less-open 68.88 327.3 59.6 less-open 69.15 133.7 53.9 less-open 69.99 332.5 39.6 less-open 70.25 132.7 54.1 less-open 70.44 128.7 54.6 less-open 70.85 132.8 50.6 less-open 71.07 124.2 60.5 less-open 71.6 131.3 44.5 less-open 71.86 115.6 53.2 less-open 72.42 139.1 49.7 less-open 72.59 129.1 44.6 less-open 72.82 134.0 42.2 less-open 72.92 131.5 45.4 less-open 73.13 312.1 59.2 less-open 73.41 133.1 40.3 less-open 74.33 136.7 50.1 less-open 74.58 308.6 48.2 less-open 74.92 129.9 42.1 less-open 75.98 139.1 44.2 less-open 76.03 336.6 49.7 less-open 76.85 320.0 48.8 less-open 76.95 149.4 36.7 less-open 77.47 188.7 27.5 less-open 77.77 117.1 54.1 less-open 77.97 143.0 43.8 less-open 78.2 5.3 46.7 less-open 78.24 135.7 40.1 less-open 78.63 144.2 36.8 less-open 79.68 151.9 37.0 less-open 80.07 141.4 55.1 less-open 80.48 300.2 77.5 less-open 81.11 291.3 76.4 less-open 81.35 190.8 25.8 less-open 81.94 269.5 34.0 less-open 82.18 159.1 39.6 less-open 82.44 280.1 64.8 less-open 83.44 261.8 38.8 less-open 83.91 280.1 70.6 less-open Page 4 of 11
Fracture Orientations Interpreted from MW-32 Acoustic Televiewer Log (optical televiewer above water level)
Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw32i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 83.97 272.8 70.3 less-open 84.58 302.6 62.9 less-open 84.72 266.1 64.8 less-open 85.58 293.3 64.0 less-open 85.8 288.7 60.7 less-open 86.13 310.3 53.4 less-open 86.26 281.3 54.3 less-open 86.73 289.8 58.0 less-open 87.01 329.5 42.7 less-open 87.03 140.8 47.3 less-open 87.27 165.8 41.6 less-open 87.76 310.5 49.8 less-open 87.8 278.2 60.6 less-open 88.6 274.3 55.0 less-open 88.81 169.9 62.4 less-open 88.86 270.9 59.0 less-open 89.64 170.6 47.0 less-open 89.91 303.7 58.3 less-open 90.4 295.7 57.3 less-open 90.73 43.6 57.1 less-open 91.18 287.7 53.3 less-open 91.74 291.7 54.5 less-open 92.36 274.0 46.9 less-open 92.81 5.6 44.5 less-open 92.95 294.0 51.7 less-open 93.89 129.6 66.7 less-open 94.67 187.6 43.9 less-open 94.79 163.5 42.0 less-open 95.61 356.48 24.47 less-open 95.79 106.97 37.3 less-open 96.32 173.5 39.3 less-open 96.52 356.4 32.0 less-open 96.81 122.4 64.3 less-open 97.58 165.8 48.6 less-open 98.22 326.8 59.8 less-open 98.36 330.1 56.0 less-open 98.48 155.9 38.5 less-open 98.82 195.7 35.5 less-open 98.89 337.5 51.5 less-open 99.82 360.0 35.7 less-open 100 152.0 37.2 less-open 100.07 155.7 42.1 less-open 100.51 150.8 53.8 less-open 100.91 149.4 45.1 less-open Page 5 of 11
Fracture Orientations Interpreted from MW-32 Acoustic Televiewer Log (optical televiewer above water level)
Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw32i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 101.81 169.1 49.2 less-open 101.99 162.0 49.6 less-open 102.67 116.5 82.0 less-open 102.81 124.1 41.6 less-open 103.77 155.8 45.3 less-open 104.02 158.7 48.2 less-open 104.66 348.1 66.4 less-open 105.1 325.4 51.5 less-open 105.31 141.1 39.4 less-open 105.98 182.9 79.8 less-open 106.08 180.0 78.8 less-open 106.61 155.2 40.0 less-open 106.79 345.6 60.8 less-open 107.37 138.3 35.6 less-open 107.38 320.6 63.6 less-open 107.9 150.1 39.9 less-open 108.3 160.6 42.4 less-open 108.62 148.4 36.3 less-open 109.06 130.5 38.7 less-open 109.5 131.1 52.4 less-open 109.75 343.1 56.6 less-open 110.08 165.3 36.2 less-open 110.08 117.9 66.3 less-open 110.15 126.9 46.8 less-open 110.94 133.7 63.6 less-open 111.09 118.0 78.1 less-open 111.77 303.6 45.2 less-open 112.05 117.6 61.4 less-open 112.32 127.9 60.8 less-open 112.48 143.1 44.8 less-open 112.5 269.5 63.2 less-open 113.16 254.3 69.6 less-open 113.22 160.9 38.8 less-open 113.23 278.1 68.0 less-open 113.68 274.5 66.9 less-open 114.14 130.4 46.7 less-open 114.54 144.5 45.9 less-open 114.85 262.2 55.7 less-open 115.2 259.6 64.6 less-open 115.58 152.6 46.3 less-open 116.77 161.2 45.1 less-open 117.55 108.45 47.87 less-open 118.18 109.33 61.86 less-open 119.23 134.2 47.52 less-open Page 6 of 11
Fracture Orientations Interpreted from MW-32 Acoustic Televiewer Log (optical televiewer above water level)
Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw32i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 119.4 339.02 58.74 less-open 119.59 152.29 38.68 less-open 119.85 133.57 40.62 less-open 120.1 136.09 36.15 less-open 120.18 278.3 74.24 less-open 120.59 157.71 35.03 less-open 121.27 100.98 70.15 less-open 121.69 292.57 55.13 less-open 122.03 113.26 61.29 less-open 122.09 333.88 58.07 less-open 122.18 118.72 59.55 less-open 122.41 112.13 59.81 less-open 123.05 127.82 40.04 less-open 123.28 110.01 58.58 less-open 123.4 295.64 64.61 less-open 123.53 134.41 43.96 less-open 124.03 285.56 65.86 less-open 124.15 131.4 47.15 less-open 124.6 124.47 49.49 less-open 125.31 165.82 38.93 less-open 125.71 142.87 54.82 less-open 125.78 351.25 52.73 less-open 126.42 4.53 55.24 less-open 126.47 117.61 54.64 less-open 126.88 127.95 56.57 less-open 127.41 338.14 62.37 less-open 127.54 141 54.44 less-open 127.93 123.26 58.91 less-open 128.48 137.19 60.01 less-open 128.99 113.97 59.94 less-open 129.06 346.66 50.7 less-open 129.72 108.81 58.1 less-open 129.73 321.66 51.77 less-open 130.16 112.11 57.61 less-open 130.43 116.22 54.15 less-open 130.53 122.84 54.41 less-open 130.84 109.84 56.56 less-open 131.97 118.89 57.12 less-open 132.77 120.16 54.7 less-open 132.86 231.72 55.5 less-open 133.1 132.02 52.17 less-open 133.21 342.28 57.83 less-open 134.08 305.01 40.16 less-open 134.24 118.44 73.3 less-open Page 7 of 11
Fracture Orientations Interpreted from MW-32 Acoustic Televiewer Log (optical televiewer above water level)
Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw32i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 134.59 287.29 62.99 less-open 134.81 153.33 49.08 less-open 135.28 140.18 48.57 less-open 135.52 126.58 50.57 less-open 135.56 331.14 74.47 less-open 136.03 284.27 51.02 less-open 136.25 297.14 46.77 less-open 136.61 153.71 36.36 less-open 136.75 278.06 62.86 less-open 136.8 117.38 44.79 less-open 137.14 300.22 54.07 less-open 137.51 315.75 45.53 less-open 138.03 101.16 59.91 less-open 138.61 125.85 52.77 less-open 138.66 112.51 73.46 less-open 139.27 320.38 63.52 less-open 139.48 116.18 57.16 less-open 139.65 288.6 56.69 less-open 139.95 110.58 53.33 less-open 140.44 122.84 62.95 less-open 140.59 293.05 80.98 less-open 140.97 119.19 52.13 less-open 141.19 104.35 46.26 less-open 141.46 86.5 52.54 less-open 141.6 306.57 73.21 less-open 141.68 94.49 58.15 less-open 141.94 94.38 31.1 less-open 142.12 92.68 57.27 less-open 142.51 122.1 48.83 less-open 143.1 122.84 62.64 less-open 143.6 118.53 73.4 less-open 144.21 108.91 52.62 less-open 144.76 143.52 55.13 less-open 144.81 128.07 54.7 less-open 145.39 130.82 50.16 less-open 145.41 355.4 72.1 less-open 146.09 128.66 59.88 less-open 146.2 147.82 43.93 less-open 147.36 301.63 53.12 less-open 147.71 136.42 48.06 less-open 148.25 123.48 49.68 less-open 148.71 166.69 45.45 less-open 149.04 126.46 48.18 less-open 149.23 104.68 55.7 less-open Page 8 of 11
Fracture Orientations Interpreted from MW-32 Acoustic Televiewer Log (optical televiewer above water level)
Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw32i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 149.47 94.03 62.38 less-open 150 105.04 71.76 less-open 150.01 346.63 46.31 less-open 150.1 101.29 36.85 less-open 150.33 73.49 29.74 less-open 151.13 163.03 28.65 less-open 151.55 118.78 44.31 less-open 151.86 127.96 58.01 less-open 152.41 63.57 10.89 less-open 152.79 119.35 48.01 less-open 153.22 114.31 52.18 less-open 153.55 123.91 43.22 less-open 153.82 99.56 77.05 less-open 155.04 350.67 32.48 less-open 155.73 17.35 24.78 less-open 156.41 346.61 39.47 less-open 156.8 128.45 51.14 less-open 157.39 134.28 49.67 less-open 157.83 338.37 16.45 less-open 158.49 117.84 46.66 less-open 159 101.31 57.67 less-open 160.22 87.03 58.4 less-open 161.72 43.36 19.34 less-open 161.99 350.49 25.96 less-open 163.18 304.44 42.44 less-open 163.38 317.96 46.5 less-open 164.36 309.77 76.74 less-open 165.13 341.55 46.86 less-open 165.7 29.58 26.99 less-open 166.07 127.58 43.81 less-open 166.99 94.43 68.42 less-open 167.12 298.81 52.36 less-open 167.23 104.24 50.98 less-open 167.99 318.9 80.19 less-open 168.64 103.18 66.81 less-open 168.81 289.59 70.08 less-open 168.89 132.11 38.15 less-open 169.33 297.68 76.42 less-open 169.45 2.74 32.13 less-open 169.83 123.04 49.41 less-open 170.38 116.95 50.75 less-open 170.47 335.12 40.03 less-open 170.64 324.71 32.59 less-open 170.88 337.95 37.33 less-open Page 9 of 11
Fracture Orientations Interpreted from MW-32 Acoustic Televiewer Log (optical televiewer above water level)
Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw32i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 171.47 134.29 41.48 less-open 172 103.39 47.58 less-open 172.04 341.77 35.72 less-open 172.21 357.42 48.76 less-open 172.28 108.11 54.27 less-open 173.76 312.21 62.89 less-open 174.2 125.71 38.98 less-open 174.55 129.01 49.94 less-open 174.62 320.54 49.72 less-open 174.81 110.37 54.86 less-open 174.83 5.86 21.29 less-open 175.04 123.75 56.76 less-open 175.15 116.1 49.95 less-open 175.29 118.9 47.63 less-open 175.97 110.07 61.11 less-open 177.2 110.37 58.35 less-open 178.13 108.55 62.54 less-open 178.79 44.77 34.54 less-open 179.73 22.79 24.39 less-open 180.21 11.8 68.1 less-open 180.51 169.29 47.34 less-open 181.25 39.73 38.67 less-open 181.59 106.56 63.31 less-open 181.98 2.95 35.9 less-open 182.03 53.02 27.95 less-open 182.39 103.34 39.3 less-open 182.54 100.41 39.28 less-open 182.72 137.13 27.53 less-open 182.85 121.41 56.33 less-open 183.46 268.86 53.9 less-open 183.54 118.17 45.87 less-open 183.76 77.53 40.95 less-open 184.1 76.63 45.38 less-open 184.27 103 55.9 less-open 184.44 90.12 56.93 less-open 184.52 324.49 45.43 less-open 184.81 112.64 58.76 less-open 185.36 87.35 60.03 less-open 185.53 86.73 60.22 less-open 185.69 93.35 46.34 less-open 185.8 110.9 48.63 less-open 185.94 133.76 69.05 less-open 185.98 301.91 58.69 less-open 186.24 94.8 43.04 less-open Page 10 of 11
Fracture Orientations Interpreted from MW-32 Acoustic Televiewer Log (optical televiewer above water level)
Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw32i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 186.42 115.31 42.24 less-open 186.76 325.68 52.81 less-open 186.76 294.34 32.75 less-open 186.92 101.33 63.09 less-open 187.43 310.33 24.83 less-open 187.75 86.46 69.15 less-open 188.03 81.73 63.03 less-open 188.79 89.35 65.25 less-open 189.14 80.95 61.9 less-open 190.21 89.25 65.43 less-open 190.69 86.1 54.67 less-open 191.3 125.6 55.12 less-open 191.83 100.51 65.61 less-open 191.91 288.84 53.31 less-open 192.07 176.5 3.3 less-open 192.25 92.36 61.22 less-open 192.61 93.68 53.83 less-open 193.41 300.96 52.93 less-open 193.44 90.26 64.3 less-open 193.57 328.29 37.1 less-open 194.12 80.05 50.84 less-open 194.56 316.64 59.61 less-open 194.75 78 57.41 less-open 195.05 328.56 48.69 less-open 195.78 355.49 42.87 less-open 196.54 117.03 54.38 less-open 196.97 123.18 4.85 less-open 197.48 137.03 5.8 less-open 197.97 165.54 3
less-open 198.06 81.54 7.75 less-open Page 11 of 11
Fracture Orientations Interpreted from MW-34 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw34i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 9.77 299.1 68.4 less-open 10.20 149.7 64.9 less-open Note that down-dip compass azimuth 10.35 152.1 63.2 less-open is perpendicular to the strike direction.
10.56 143.2 66.8 open 10.81 129.5 65.6 open Note that interpreted down-dip compass 11.30 144.1 64.7 less-open azimuths are with respect to 12.15 115.9 58.2 less-open magnetic north.
12.46 331.9 73.6 less-open 13.22 146.6 63.6 less-open Down-dip azimuths & dip angles were 13.22 320.6 77.2 less-open corrected for borehole deviation from 13.53 106.1 58.0 less-open vertical.
13.82 134.8 66.3 less-open 15.45 98.8 24.3 open 15.57 341.1 17.2 open 15.88 63.2 39.1 open 16.03 48.1 28.7 open 17.80 342.4 86.0 less-open 18.33 227.5 72.0 less-open 18.47 243.4 12.2 less-open 19.49 326.8 21.0 less-open 23.13 130.4 25.4 less-open 24.91 306.7 62.8 less-open 25.17 67.1 29.9 less-open 26.08 151.4 79.8 less-open 27.42 167.9 81.2 less-open 27.77 65.0 1.6 less-open Page 1 of 1
Fracture Orientations Interpreted from MW-35 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw35i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 9.19 180.1 53.9 less-open 9.34 181.6 50.8 less-open Note that down-dip compass azimuth 9.47 161.9 50.0 less-open is perpendicular to the strike direction.
9.67 184.7 47.8 less-open 11.81 206.2 69.7 less-open Note that interpreted down-dip compass 12.82 187.3 63.7 less-open azimuths are with respect to 13.73 70.6 10.1 less-open magnetic north.
14.66 78.0 15.0 open 15.79 208.6 48.4 less-open Down-dip azimuths & dip angles were 16.65 170.5 56.5 less-open corrected for borehole deviation from 16.76 177.7 59.5 less-open vertical.
17.37 147.5 65.4 less-open 18.90 78.5 58.6 less-open 19.36 133.4 56.2 less-open 20.78 200.9 40.9 less-open 20.90 192.5 46.3 less-open 20.95 194.8 47.2 less-open 21.18 205.7 52.9 less-open 21.57 209.1 54.1 less-open 24.46 138.4 56.7 less-open 25.18 201.5 47.9 less-open 26.43 107.1 28.8 less-open 26.47 132.5 75.1 less-open 27.12 118.8 78.3 less-open 28.49 119.56 4.5 less-open Page 1 of 1
Fracture Orientations Interpreted from MW-39 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw39i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 54.49 306.2 39.5 less-open 55.54 333.3 19.6 less-open Note that down-dip compass azimuth 55.93 122.7 63.6 less-open is perpendicular to the strike direction.
56.56 183.9 83.8 less-open 59.71 140.3 46.2 less-open Note that interpreted down-dip compass 62.11 264.4 36.4 less-open azimuths are with respect to 62.28 63.4 74.2 less-open magnetic north.
62.50 126.7 30.8 less-open 63.34 85.9 61.8 less-open Down-dip azimuths & dip angles were 63.43 287.5 34.1 less-open corrected for borehole deviation from 63.68 70.9 72.3 less-open vertical.
63.95 70.6 65.2 less-open 66.97 56.1 23.3 open 67.56 188.4 66.5 less-open 68.01 200.9 72.6 less-open 68.15 86.6 25.8 less-open 68.20 72.4 22.7 less-open 68.67 53.0 17.0 open 68.75 42.2 20.6 open 70.47 67.6 37.0 less-open 71.37 124.3 72.0 less-open 75.15 147.1 65.2 less-open 75.2 119.7 78.06 less-open 75.49 334.71 30.89 less-open 77.84 231.32 31.98 less-open 78.64 348.41 64.08 less-open 78.74 174.5 22.3 less-open 79.87 190.7 23.4 less-open 80.67 131.1 50.2 less-open 81.84 190.7 77.1 less-open 82.47 207.9 75.6 less-open 83.01 167.3 74.0 less-open 84.15 138.6 50.7 less-open 84.25 187.1 82.3 less-open 85.53 215.4 6.8 less-open 85.60 221.4 6.2 less-open 85.83 331.7 48.2 open 85.95 112.6 71.4 less-open 86.56 120.6 57.9 less-open 87.27 135.3 35.0 less-open 87.59 109.2 54.3 less-open 87.79 264.1 52.7 less-open 87.90 175.3 31.5 less-open 87.93 74.8 49.3 less-open Page 1 of 5
Fracture Orientations Interpreted from MW-39 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw39i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 90.51 202.3 60.9 less-open 90.74 138.3 52.9 less-open 90.88 140.2 52.4 less-open 91.72 70.6 59.7 less-open 92.17 280.5 58.4 less-open 93.71 99.0 49.6 less-open 94.19 314.6 58.5 less-open 95.48 186.5 59.2 less-open 95.70 253.3 61.1 less-open 96.12 242.0 61.6 less-open 96.69 55.2 57.4 less-open 97.10 227.3 56.4 less-open 97.36 198.58 68.18 less-open 97.39 101.09 73.34 less-open 97.47 298.7 48.9 less-open 98.18 140.4 78.2 less-open 98.21 94.8 75.2 open 100.49 334.2 16.3 open 101.34 125.0 64.8 less-open 103.23 44.6 78.0 less-open 103.38 93.5 19.4 less-open 103.38 349.5 23.8 less-open 103.80 126.4 34.5 less-open 104.00 155.3 47.8 open 104.07 154.0 55.2 less-open 104.64 155.4 50.7 less-open 105.17 120.8 56.2 less-open 112.37 115.4 61.6 less-open 112.64 114.1 59.5 less-open 112.73 141.4 53.0 less-open 113.25 311.0 27.4 less-open 113.31 318.3 35.2 less-open 115.48 91.1 19.4 less-open 117.88 157.5 18.9 less-open 118.64 148.3 53.3 less-open 118.79 129.5 52.9 less-open 121.17 9.9 32.1 less-open 121.26 27.1 28.0 less-open 121.38 31.8 44.0 less-open 122.40 122.6 51.9 less-open 122.56 124.0 59.2 less-open 123.63 350.1 21.7 less-open 123.70 319.8 24.9 less-open 124.03 299.34 35.01 less-open Page 2 of 5
Fracture Orientations Interpreted from MW-39 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw39i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 125.35 118.66 50.23 less-open 125.95 53.3 37.4 less-open 126.13 32.9 41.8 less-open 126.33 122.0 62.0 less-open 127.32 131.1 53.8 less-open 127.37 126.3 56.5 less-open 127.54 127.1 54.1 less-open 128.16 116.5 64.1 less-open 128.49 106.2 64.8 less-open 128.54 109.4 64.2 less-open 129.16 119.5 15.8 less-open 129.37 116.7 50.2 less-open 129.84 108.4 62.2 less-open 130.53 115.0 66.2 less-open 130.67 122.76 45.8 less-open 131.05 129.6 43.52 less-open 131.54 128.0 55.5 less-open 131.64 78.4 19.6 less-open 132.01 118.5 55.3 less-open 132.36 72.7 76.6 less-open 132.45 126.6 34.9 less-open 133.12 76.0 76.6 less-open 134.05 79.6 69.4 less-open 134.12 92.8 67.8 less-open 134.92 119.6 59.9 less-open 134.99 112.4 57.9 less-open 135.47 114.7 54.8 less-open 135.91 112.4 53.4 less-open 136.03 117.5 53.5 less-open 136.44 116.3 53.4 less-open 136.92 117.6 56.7 less-open 137.78 328.7 32.6 less-open 138.38 106.9 63.4 less-open 139.41 147.8 54.5 less-open 139.48 147.0 55.5 less-open 139.74 95.3 70.1 less-open 140.54 265.4 37.4 less-open 140.62 166.1 43.6 less-open 140.65 298.2 26.7 less-open 141.13 264.2 35.8 less-open 141.63 138.6 51.2 less-open 141.98 140.0 47.6 less-open 142.8 341.7 58.7 less-open 144.78 99.2 80.3 less-open Page 3 of 5
Fracture Orientations Interpreted from MW-39 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw39i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 145.57 305.4 78.6 less-open 146.79 115.4 62.5 less-open 147.79 333.3 75.3 less-open 147.86 124.7 73.1 less-open 148.48 194.1 75.1 less-open 149.79 184.0 63.8 less-open 152.71 123.9 56.4 less-open 153.14 130.5 56.0 less-open 153.53 116.9 58.5 less-open 153.95 122.5 60.1 less-open 154.18 107.5 66.2 less-open 154.32 110.8 63.8 less-open 154.99 130.3 62.2 less-open 155.49 96.6 74.2 less-open 156.58 121.3 55.6 less-open 157.27 89.0 72.4 less-open 157.95 84.9 67.5 less-open 158.37 115.5 60.6 less-open 159.04 85.1 48.9 less-open 159.96 107.3 61.0 less-open 160.03 102.9 61.6 less-open 160.35 105.1 66.2 less-open 160.5 96.9 69.8 less-open 161.42 106.6 70.4 less-open 166.66 98.5 57.4 less-open 166.89 124.0 51.7 less-open 167.52 135.8 44.8 less-open 168.25 125.9 46.9 less-open 169.49 183.2 48.3 less-open 170.82 211.1 67.3 less-open 172.18 164.3 53.5 less-open 172.61 156.9 52.2 less-open 172.91 137.0 47.7 less-open 173.55 160.9 55.7 less-open 174.37 140.6 58.3 less-open 174.52 119.8 56.4 less-open 174.6 127.0 56.1 less-open 175.27 129.2 55.2 less-open 175.45 114.8 59.5 less-open 175.66 121.7 57.4 less-open 176.16 129.9 56.4 less-open 176.43 125.8 54.9 less-open 177.2 161.0 74.7 less-open 178.44 163.8 76.2 less-open Page 4 of 5
Fracture Orientations Interpreted from MW-39 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw39i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 179.56 129.1 56.5 less-open 179.71 125.5 58.3 less-open 179.86 125.4 49.8 less-open 180.1 130.9 57.8 less-open 180.53 130.2 60.6 less-open 181.14 119.9 64.3 less-open 181.3 130.9 59.9 less-open 181.64 131.3 60.9 less-open 181.89 129.9 52.1 less-open 182.28 121.9 60.7 less-open 182.39 306.8 45.7 less-open 182.99 147.0 34.4 less-open 183.7 156.4 63.6 less-open 184 123.7 55.7 less-open 184.14 128.5 48.4 less-open 184.19 157.0 47.0 less-open 184.6 192.8 53.3 less-open 187.61 167.7 72.6 less-open 189.13 104.4 46.6 less-open 190.69 188.1 78.8 less-open 193.8 110.8 62.4 less-open 194.25 149.0 61.2 less-open 195.26 139.3 59.9 less-open 195.5 168.4 71.9 less-open 196.52 131.0 58.9 less-open 196.53 170.1 63.8 less-open 196.58 146.2 56.7 less-open 196.9 151.2 46.8 less-open 196.9 211.49 54.93 less-open 197.11 165.77 45.92 less-open 197.4 150.7 49.4 less-open 197.93 156.8 3.6 less-open 198.78 199.3 1.4 less-open 198.92 205.9 1.9 less-open 199.19 188.7 2.1 less-open Page 5 of 5
Fracture Orientations Interpreted from MW-40 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw40i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 17.23 209.2 48.1 less-open 17.32 210.9 43.6 less-open Note that down-dip compass azimuth 18.38 119.4 61.5 less-open is perpendicular to the strike direction.
18.83 239.1 10.7 open 19.35 18.0 59.1 less-open Note that interpreted down-dip compass 20.45 146.3 11.8 open azimuths are with respect to 21.51 138.2 32.1 open magnetic north.
22.44 342.5 59.4 less-open 22.72 358.4 59.2 less-open Down-dip azimuths & dip angles were 22.85 351.7 58.0 less-open corrected for borehole deviation from 22.94 334.7 15.0 open vertical.
23.02 343.8 60.1 less-open 23.17 359.8 55.0 less-open 23.93 335.1 44.9 less-open 24.17 336.4 50.4 less-open 24.25 331.4 57.6 less-open 24.48 341.4 66.2 less-open 24.71 356.8 30.4 less-open 25.51 8.8 65.3 less-open 26.21 3.4 28.9 less-open 26.44 1.53 31.42 open 26.77 352.08 43.65 less-open 27.26 354.99 44.48 less-open 28.17 116.27 67.85 less-open 28.20 344.1 58.7 less-open 28.23 10.7 39.8 less-open 28.63 14.1 42.3 less-open 29.20 324.6 56.7 less-open 29.26 341.2 60.0 less-open 29.32 337.5 23.9 less-open 29.67 136.2 54.0 less-open 29.92 273.1 23.1 open 30.50 159.2 50.4 less-open 30.58 28.9 38.0 less-open 30.98 153.3 50.2 less-open 31.10 124.8 42.8 less-open 32.01 10.9 65.5 less-open 32.16 336.1 60.1 less-open 32.59 153.0 53.0 less-open 33.00 130.7 56.9 less-open 33.40 41.6 5.2 less-open 33.64 13.9 50.7 less-open 34.73 335.4 65.4 less-open 35.04 86.3 24.1 open Page 1 of 4
Fracture Orientations Interpreted from MW-40 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw40i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 35.34 3.5 53.9 less-open 35.58 9.1 49.6 less-open 35.82 3.3 63.1 less-open 36.02 347.9 69.8 less-open 36.28 352.9 75.5 less-open 36.73 358.6 56.0 less-open 36.82 8.2 54.4 less-open 36.87 7.4 42.9 less-open 36.93 349.6 38.5 less-open 37.13 350.3 51.1 less-open 37.2 351.04 52.69 less-open 37.51 14.18 47.21 less-open 38.17 8.7 60.2 less-open 38.41 7.5 55.7 less-open 40.46 347.4 72.7 less-open 40.60 114.1 69.7 less-open 41.68 132.0 67.4 less-open 41.90 8.8 38.9 less-open 42.59 57.0 26.0 less-open 43.39 7.1 37.5 less-open 44.32 147.8 30.2 less-open 47.61 9.6 40.9 open 48.20 8.2 38.8 less-open 49.13 315.3 45.8 less-open 49.79 7.9 52.3 less-open 50.44 14.5 40.9 less-open 51.54 17.1 28.7 less-open 53.42 135.0 59.5 less-open 54.10 11.3 25.9 less-open 55.40 350.3 42.9 less-open 58.80 26.5 39.5 less-open 59.71 348.7 65.2 less-open 60.54 350.4 63.6 less-open 61.27 6.4 40.9 less-open 61.63 18.1 52.6 less-open 62.98 142.7 60.3 less-open 63.35 4.6 39.7 less-open 64.34 50.5 14.3 less-open 67.03 243.1 66.9 less-open 67.58 59.1 27.0 less-open 68.50 134.6 58.6 less-open 68.8 156.85 63.3 less-open 70.41 306.23 37.14 open 71.41 303.1 54.3 less-open Page 2 of 4
Fracture Orientations Interpreted from MW-40 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw40i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 71.76 6.7 36.1 less-open 72.61 19.6 38.4 less-open 74.15 119.4 56.5 less-open 77.96 4.4 36.7 less-open 80.19 358.7 46.0 less-open 81.37 125.1 62.8 less-open 81.78 131.2 63.6 less-open 82.36 116.0 61.0 open 83.60 120.8 60.0 open 83.62 352.9 55.6 less-open 85.24 354.1 69.2 less-open 85.71 334.5 37.5 less-open 89.45 21.09 39.98 less-open 89.85 143.79 62.67 less-open 91.08 8.2 50.8 less-open 95.55 226.6 22.6 less-open 96.76 350.7 41.0 less-open 97.54 326.6 49.4 less-open 98.93 10.3 45.8 less-open 99.18 5.8 40.7 less-open 100.87 323.8 53.6 less-open 101.32 346.6 39.8 less-open 101.54 1.6 36.1 less-open 101.92 345.2 49.1 less-open 102.47 3.9 49.1 less-open 103.04 67.6 74.6 less-open 103.6 109.1 54.0 less-open 104.13 345.0 54.5 less-open 106.33 280.6 50.6 less-open 106.97 288.7 28.8 less-open 107.36 328.1 24.7 less-open 115.45 243.2 33.6 less-open 117.57 105.1 54.7 less-open 118.06 106.2 59.9 less-open 118.25 332.1 56.3 less-open 118.29 113.5 66.2 less-open 118.97 294.1 37.6 less-open 120.72 121.4 61.7 less-open 121.54 353.7 48.5 less-open 122.65 334.4 36.5 less-open 123.43 339.0 40.2 less-open 124.85 356.3 49.8 less-open 128.04 314.7 59.6 less-open 128.22 299.5 63.0 less-open Page 3 of 4
Fracture Orientations Interpreted from MW-40 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw40i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 128.46 292.1 45.6 less-open 128.56 309.7 68.1 less-open 128.61 120.2 61.8 less-open 129.51 329.6 60.3 less-open 130.31 2.6 48.8 less-open 131.1 276.3 30.1 less-open 131.86 280.6 34.8 less-open 134.46 252.2 56.5 less-open 135.11 278.0 51.5 less-open 136.09 250.0 50.6 less-open 136.26 244.7 52.2 less-open 137.55 352.2 45.5 less-open 138.1 1.8 59.1 less-open 138.18 10.1 44.1 less-open 142.37 7.6 51.2 less-open 145.32 102.3 57.6 less-open 149.02 129.8 49.0 less-open 149.07 351.0 55.5 less-open 150.14 271.6 62.3 less-open 155.46 204.9 40.5 less-open 161.45 354.4 49.7 less-open 161.84 334.7 40.2 less-open 163.44 352.1 48.1 less-open 164.1 332.7 43.0 less-open 164.25 340.1 41.4 less-open 164.82 358.4 50.8 less-open 166.62 353.6 51.8 less-open 167.5 287.5 67.2 less-open 169.23 197.4 28.8 less-open 171.39 325.9 63.1 less-open 171.66 313.0 62.1 less-open 186.41 284.2 25.6 less-open 188.74 98.7 73.2 less-open 188.85 289.9 84.5 less-open 188.99 271.8 79.2 less-open 190.41 212.1 48.1 less-open Page 4 of 4
Fracture Orientations Interpreted from MW-51 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw51i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 28.65 147.2 72.9 less-open 29.25 350.4 23.2 less-open Note that down-dip compass azimuth 29.69 331.0 10.6 less-open is perpendicular to the strike direction.
30.28 257.9 23.8 less-open 31.38 234.5 72.9 less-open Note that interpreted down-dip compass 31.43 123.9 65.2 less-open azimuths are with respect to 31.79 301.4 5.1 less-open magnetic north.
31.88 140.4 55.2 less-open 32.17 131.1 44.5 less-open Down-dip azimuths & dip angles were 32.50 143.8 62.2 less-open corrected for borehole deviation from 32.67 222.1 11.3 less-open vertical.
32.68 129.7 60.8 less-open 32.68 316.3 69.1 less-open 33.22 159.4 12.1 less-open 33.45 136.5 71.0 less-open 33.61 241.1 27.5 less-open 34.07 145.0 52.8 less-open 34.28 128.8 55.6 less-open 34.44 136.09 60.47 less-open 34.76 133.9 50.8 less-open 35.18 140.71 13.1 less-open 35.3 315.4 49.56 less-open 35.41 139.9 77.9 less-open 35.74 124.4 64.2 less-open 36.57 134.2 55.4 less-open 36.61 295.0 59.6 less-open 37.29 122.8 39.7 less-open 38.27 158.2 29.3 less-open 38.78 134.0 78.7 less-open 39.06 318.2 57.0 less-open 39.87 312.7 71.2 less-open 40.85 140.8 48.0 less-open 40.95 130.7 54.4 less-open 41.04 131.6 56.8 less-open 41.26 156.4 53.0 less-open 41.62 138.1 60.8 less-open 41.73 138.1 59.2 less-open 41.79 190.7 72.9 less-open 42.07 143.0 31.0 less-open 42.18 151.2 57.2 less-open 42.55 136.6 49.8 less-open 43.42 132.0 65.3 less-open 43.56 123.9 66.1 less-open 43.73 300.7 26.8 less-open Page 1 of 6
Fracture Orientations Interpreted from MW-51 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw51i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 44.46 270.2 44.9 less-open 45.40 276.3 40.9 less-open 45.69 323.6 38.6 less-open 45.81 146.3 54.8 less-open 47.57 288.8 46.9 less-open 48.48 295.2 39.5 less-open 48.79 325.0 6.5 less-open 49.97 200.2 44.7 less-open 50.79 169.57 37.7 less-open 51.19 167.44 26.29 less-open 52.84 307.2 28.1 less-open 55.87 321.8 31.7 less-open 56.74 304.3 20.4 less-open 57.16 284.8 30.9 less-open 57.25 147.3 61.4 less-open 58.22 163.9 59.7 less-open 58.98 274.5 16.6 less-open 59.25 214.2 18.3 less-open 60.27 214.8 27.7 less-open 61.86 173.9 68.9 less-open 63.30 202.5 46.0 less-open 65.45 330.8 48.3 less-open 65.91 174.4 53.3 less-open 66.73 226.8 11.2 less-open 66.77 294.1 39.1 less-open 67.91 179.0 77.7 less-open 68.90 195.0 73.5 less-open 69.52 173.5 24.7 less-open 70.46 194.8 10.2 less-open 70.69 353.0 37.2 less-open 70.88 179.6 17.2 less-open 71.17 196.7 16.4 less-open 72.79 359.0 78.5 less-open 72.96 143.0 53.5 less-open 73.63 138.2 60.7 less-open 74.21 141.9 58.5 less-open 74.49 244.3 37.0 less-open 75.65 133.1 62.7 less-open 76.31 319.5 51.5 less-open 78.11 260.54 17.83 less-open 79.84 282.41 47.63 less-open 80.57 129.1 15.9 open 80.86 136.3 57.1 less-open 81.47 304.1 51.6 less-open Page 2 of 6
Fracture Orientations Interpreted from MW-51 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw51i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 81.99 120.6 63.0 less-open 82.10 332.3 47.2 less-open 82.44 323.8 49.5 less-open 83.02 139.9 41.4 less-open 84.30 134.0 66.5 less-open 86.07 301.3 57.5 less-open 86.82 133.5 61.4 less-open 87.26 282.3 49.9 less-open 88.09 289.1 39.0 less-open 88.44 307.7 48.9 less-open 89.38 287.92 38.06 less-open 89.58 287.65 45.33 less-open 89.76 120.0 53.5 less-open 90.95 275.1 26.2 less-open 92.48 132.9 57.3 less-open 93.01 287.9 40.2 less-open 93.53 324.6 24.1 less-open 94.09 333.4 42.2 less-open 94.8 299.4 29.5 less-open 95.12 307.5 43.9 less-open 95.48 294.3 54.8 less-open 95.66 302.7 64.8 less-open 96.07 316.0 61.4 less-open 96.44 304.7 51.0 less-open 96.72 324.1 45.0 less-open 97.35 280.6 33.5 less-open 97.63 296.7 36.9 less-open 98.95 316.9 40.1 less-open 100.56 213.1 34.6 less-open 102.92 312.6 62.0 less-open 103.15 283.5 57.8 less-open 103.63 299.2 66.8 less-open 103.64 288.3 43.6 less-open 104.21 299.0 59.4 less-open 104.88 258.7 17.0 open 105.45 186.9 16.3 less-open 110.67 110.2 61.4 less-open 112.67 98.1 4.1 open 115.18 253.0 27.6 less-open 118.1 96.7 7.9 less-open 118.16 88.3 12.8 less-open 118.39 186.0 30.5 less-open 118.76 222.5 22.2 less-open 119.16 227.4 25.5 less-open Page 3 of 6
Fracture Orientations Interpreted from MW-51 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw51i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 119.5 256.7 39.7 less-open 120.48 287.3 39.4 less-open 120.64 273.2 43.5 less-open 121.53 293.4 51.1 less-open 121.62 316.1 75.0 less-open 123.1 96.6 16.9 less-open 123.55 71.7 33.5 less-open 124.62 294.5 41.7 less-open 125.9 257.9 32.7 less-open 126.17 122.6 66.1 less-open 126.79 263.4 40.8 less-open 126.98 258.9 56.6 less-open 127.54 287.9 26.4 less-open 128.68 287.5 38.7 less-open 128.93 132.2 62.3 less-open 129.28 325.8 63.6 less-open 129.31 147.1 65.2 less-open 131.88 246.8 48.6 less-open 132.51 333.9 27.3 less-open 133.09 35.9 60.4 less-open 133.81 265.3 27.6 less-open 135.14 124.8 14.7 less-open 135.97 300.1 37.4 less-open 136.19 275.8 29.4 less-open 136.31 278.2 41.1 less-open 136.88 133.5 56.7 less-open 137.14 119.0 34.4 less-open 137.57 256.7 37.3 less-open 137.69 238.1 26.0 less-open 138.89 133.3 55.3 less-open 139.4 127.1 56.3 less-open 139.71 127.2 58.9 less-open 140.07 280.8 22.1 less-open 140.67 116.0 55.9 less-open 141.74 91.41 35.02 less-open 144.29 128.13 31.38 less-open 144.89 224.0 39.6 less-open 144.95 303.4 42.8 less-open 145.15 110.8 38.3 less-open 151.08 284.3 14.8 less-open 151.44 268.8 31.7 less-open 152.11 298.4 22.2 less-open 153.3 295.6 56.9 less-open 154.97 24.4 61.9 less-open Page 4 of 6
Fracture Orientations Interpreted from MW-51 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw51i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 156.89 315.7 47.6 less-open 157.89 287.2 56.1 less-open 158.27 284.8 40.8 less-open 158.96 111.1 56.3 less-open 159.17 280.6 45.1 less-open 159.68 263.8 40.3 less-open 160.78 284.1 39.3 less-open 161.32 293.3 46.7 less-open 161.84 271.9 41.1 less-open 162.44 276.1 44.8 less-open 162.96 314.6 40.3 less-open 163.22 100.9 57.5 less-open 163.29 285.3 30.3 less-open 164.46 307.8 28.0 less-open 165.09 297.4 32.0 less-open 165.4 116.3 63.7 less-open 165.55 127.3 64.7 less-open 166.62 330.0 35.6 less-open 167.99 304.0 57.7 less-open 171.11 258.5 43.5 less-open 171.54 312.5 29.3 less-open 174.35 285.8 59.6 less-open 177.98 150.0 79.8 less-open 179.98 312.6 32.6 less-open 181.16 281.5 37.3 less-open 181.23 200.4 62.2 less-open 182.45 310.86 32.28 less-open 184.68 290.85 57.5 less-open 186.82 290.6 27.7 less-open 187.11 208.8 77.9 less-open 187.96 280.7 48.0 less-open 188.65 265.6 45.5 less-open 189 133.1 61.7 less-open 189.57 110.03 60.01 less-open 190.16 123.34 62.14 less-open 191 286.3 39.8 less-open 191.15 141.4 54.5 less-open 191.28 281.6 53.5 less-open 191.8 259.7 48.7 less-open 192.02 262.2 35.3 less-open 192.25 302.8 43.7 less-open 193.03 140.7 59.6 less-open 193.56 314.5 39.4 less-open 194.45 134.4 62.9 less-open Page 5 of 6
Fracture Orientations Interpreted from MW-51 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw51i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 194.45 242.0 46.0 less-open 195.2 318.9 13.4 less-open 196.58 22.6 74.4 less-open 197.71 359.6 1.6 less-open 197.94 345.9 1.5 less-open 198.09 127.0 5.8 less-open Page 6 of 6
Fracture Orientations Interpreted from MW-52 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw52i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 13.76 54.5 62.1 less-open 13.80 115.1 47.0 open Note that down-dip compass azimuth 13.88 56.1 64.1 less-open is perpendicular to the strike direction.
13.95 129.0 41.7 open 14.23 101.7 53.3 less-open Note that interpreted down-dip compass 14.52 64.0 37.6 less-open azimuths are with respect to 14.64 56.4 37.0 less-open magnetic north.
14.68 164.0 66.5 less-open 14.83 69.2 59.9 open Down-dip azimuths & dip angles were 15.05 71.4 66.6 less-open corrected for borehole deviation from 15.23 69.8 57.8 less-open vertical.
15.56 75.5 61.0 less-open 15.64 71.5 62.5 less-open 15.66 7.5 59.5 less-open 16.04 82.1 50.0 less-open 16.27 70.9 61.3 less-open 16.42 76.22 53.12 less-open 16.72 66.05 59.34 less-open 16.77 280.65 39.88 less-open 16.91 162.06 65.26 less-open 17.02 75.9 60.1 less-open 17.62 71.8 61.8 less-open 18.94 81.9 58.8 less-open 19.07 147.9 65.6 less-open 19.08 97.8 52.0 less-open 19.64 148.4 60.1 less-open 19.69 167.3 73.2 less-open 20.27 71.9 61.1 open 20.37 64.4 56.4 open 20.49 74.4 59.7 open 20.85 98.0 42.7 less-open 21.41 96.0 50.8 less-open 21.84 299.8 44.2 less-open 22.97 163.1 62.4 less-open 23.91 72.8 71.6 less-open 24.48 71.8 62.1 less-open 25.17 326.5 28.4 less-open 25.59 321.3 25.0 less-open 26.29 138.7 35.2 less-open 26.72 154.5 78.4 less-open 26.82 161.7 79.5 less-open 27.32 111.7 42.7 less-open 28.55 271.6 47.8 less-open 29.08 300.3 32.8 less-open Page 1 of 7
Fracture Orientations Interpreted from MW-52 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw52i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 29.41 152.3 81.0 less-open 30.41 284.9 28.5 less-open 31.07 117.5 57.9 less-open 31.45 184.2 80.4 less-open 31.86 327.8 51.3 less-open 33.32 217.1 26.3 less-open 34.13 49.64 17.45 less-open 34.18 116.46 68.38 less-open 34.78 328.6 23.9 less-open 36.68 349.3 20.2 less-open 38.18 142.9 40.9 less-open 39.16 127.2 47.1 less-open 39.91 88.0 58.8 less-open 40.07 126.5 53.3 less-open 40.15 170.2 72.7 less-open 40.85 159.3 61.3 less-open 41.28 101.1 42.0 less-open 41.80 164.9 70.8 less-open 41.83 84.2 71.3 less-open 43.29 325.7 28.0 less-open 44.28 149.6 32.4 less-open 44.55 121.1 34.4 less-open 44.86 165.8 65.5 less-open 44.93 295.5 39.9 less-open 46.04 129.3 42.8 less-open 46.11 164.9 62.3 less-open 46.65 70.8 62.7 less-open 46.65 67.5 51.1 less-open 46.66 138.6 31.3 less-open 46.85 13.9 52.8 less-open 47.14 350.9 36.4 less-open 47.58 4.8 49.1 less-open 48.21 8.3 44.1 less-open 50.55 227.7 70.2 less-open 50.58 358.8 44.5 less-open 51.16 10.3 40.2 open 51.21 204.2 79.6 less-open 53.56 228.48 63.65 less-open 54.36 79.94 53.24 less-open 54.60 70.6 76.3 less-open 56.42 83.1 63.0 less-open 56.62 344.5 50.2 less-open 56.76 88.4 61.6 less-open 56.87 93.9 60.6 less-open Page 2 of 7
Fracture Orientations Interpreted from MW-52 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw52i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 57.16 79.1 71.8 less-open 57.35 331.3 68.1 less-open 57.44 95.0 66.5 less-open 57.92 96.1 68.5 less-open 58.27 86.1 65.2 less-open 60.45 354.0 53.0 less-open 61.19 8.1 51.2 less-open 61.64 106.9 47.2 less-open 61.96 140.2 27.28 less-open 62.14 119.75 40.39 less-open 62.62 121.1 36.8 less-open 62.97 353.3 49.5 less-open 63.51 307.2 64.1 less-open 63.82 81.8 66.6 less-open 64.34 80.8 72.1 less-open 64.6 85.2 61.6 less-open 64.76 110.7 49.6 less-open 64.81 107.3 47.8 less-open 64.92 100.0 52.7 less-open 65.21 112.3 50.5 less-open 65.29 110.1 74.9 less-open 65.3 109.2 51.4 less-open 65.53 101.5 51.7 less-open 65.68 94.5 54.0 open 66.12 88.8 52.1 less-open 66.35 110.7 47.8 less-open 66.46 75.3 75.8 less-open 66.56 91.4 59.8 less-open 66.95 283.6 65.7 less-open 66.98 99.8 48.5 less-open 67.06 69.3 62.9 less-open 67.19 103.7 46.9 less-open 67.4 111.0 58.8 less-open 67.71 102.6 44.4 less-open 67.78 119.8 47.8 less-open 69.28 103.9 49.4 less-open 69.54 107.8 50.8 less-open 69.71 108.8 46.7 less-open 70.01 98.5 45.2 less-open 70.16 116.6 52.9 less-open 71.35 107.8 52.5 less-open 72.01 91.3 55.6 less-open 72.14 96.7 59.5 less-open 72.44 114.3 51.2 less-open Page 3 of 7
Fracture Orientations Interpreted from MW-52 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw52i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 74.11 92.7 60.1 less-open 74.21 101.7 60.8 less-open 74.45 88.4 61.3 less-open 74.62 91.6 65.3 less-open 74.75 90.4 64.0 less-open 77 81.7 65.6 less-open 77.24 195.3 80.6 less-open 79.27 353.6 54.1 less-open 79.4 336.0 63.0 less-open 80.51 128.7 79.2 less-open 81.66 176.3 74.9 less-open 82.65 175.2 70.5 less-open 84.49 211.8 69.7 less-open 84.53 174.5 72.3 less-open 84.82 338.8 59.9 less-open 85.42 189.6 73.2 less-open 85.69 112.8 47.9 less-open 85.74 343.0 54.5 less-open 85.76 182.5 74.4 less-open 87.01 112.2 50.3 less-open 88.21 343.0 55.5 less-open 89.01 91.2 54.7 less-open 89.21 101.7 63.0 less-open 89.8 113.9 56.3 less-open 89.82 355.5 57.5 less-open 90.79 125.6 76.1 less-open 92.43 187.7 57.4 less-open 92.55 196.9 59.7 less-open 92.83 355.6 55.0 less-open 92.93 179.0 72.0 less-open 93.05 189.7 64.8 less-open 93.13 293.6 41.6 less-open 93.47 347.51 52.72 less-open 96.32 106.89 36.28 less-open 96.46 122.6 54.3 less-open 96.6 124.4 46.7 less-open 97.03 205.2 52.7 less-open 98.24 319.3 31.5 less-open 100.57 352.3 51.3 less-open 100.68 346.3 57.2 less-open 101.39 325.1 62.0 less-open 102.01 357.2 50.0 less-open 104.58 156.5 34.2 less-open 104.64 353.8 51.4 less-open Page 4 of 7
Fracture Orientations Interpreted from MW-52 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw52i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 104.75 183.3 39.7 less-open 105.24 198.0 46.0 less-open 106.01 177.3 45.0 less-open 108.87 160.9 35.6 less-open 108.97 333.1 47.0 less-open 109.05 5.1 46.7 less-open 109.98 125.2 48.1 less-open 111.69 212.1 70.3 less-open 112.5 220.0 67.0 less-open 113.01 354.5 51.9 less-open 113.54 93.7 70.6 less-open 114.75 174.1 67.1 less-open 115.33 106.1 62.2 less-open 116.48 102.5 63.1 less-open 116.57 99.0 59.9 less-open 117.23 112.9 53.7 less-open 117.29 107.2 56.1 less-open 117.68 104.0 53.1 less-open 117.89 112.5 40.2 less-open 118.48 102.8 60.3 less-open 118.76 102.5 68.4 less-open 118.88 103.0 57.5 open 119.05 107.1 52.1 less-open 119.15 111.1 52.0 less-open 119.36 120.46 58.24 less-open 119.99 104.8 51.67 less-open 120.33 101.1 52.4 less-open 120.73 101.9 63.7 open 120.91 129.4 41.8 less-open 121.24 117.8 51.9 less-open 121.67 121.9 52.7 less-open 121.83 104.07 50.12 less-open 121.96 128.86 43.07 less-open 122.67 115.8 40.0 less-open 122.82 117.3 56.5 less-open 123.34 119.8 42.7 less-open 123.54 115.1 74.4 less-open 123.77 107.3 64.4 open 124.02 165.9 32.0 less-open 124.03 167.2 32.8 less-open 124.17 154.6 31.6 less-open 124.42 142.4 47.8 open 124.58 138.0 50.2 less-open 124.69 111.2 52.7 open Page 5 of 7
Fracture Orientations Interpreted from MW-52 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw52i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 128.83 321.7 10.0 less-open 133.76 111.3 67.6 less-open 134.78 105.0 68.4 less-open 141.39 114.2 60.0 less-open 142.36 246.24 26.13 less-open 144.35 214.42 34.62 less-open 145.13 207.2 33.2 less-open 145.21 320.0 72.6 less-open 148.36 101.3 79.6 less-open 149.74 200.8 68.4 less-open 150.43 215.2 40.4 less-open 151.42 272.8 37.9 less-open 159.22 91.0 44.9 less-open 160.1 96.7 67.8 less-open 162.38 106.5 61.2 less-open 162.72 151.3 46.0 less-open 162.88 105.9 59.9 less-open 163.46 194.3 48.0 less-open 164 274.4 46.5 less-open 164.34 99.5 49.8 less-open 164.58 105.8 64.1 less-open 164.85 280.8 48.6 less-open 164.91 103.0 67.2 less-open 165.13 104.5 58.8 less-open 165.26 101.5 58.5 less-open 165.49 90.3 60.4 less-open 166.27 108.4 65.5 less-open 166.82 91.1 60.3 less-open 169.14 96.8 74.0 less-open 169.72 104.2 70.2 less-open 173.16 263.0 63.6 less-open 174.02 126.7 62.0 less-open 175 289.2 29.3 less-open 175.08 157.6 59.6 less-open 175.3 150.8 62.4 less-open 175.65 144.8 65.8 less-open 176.54 262.4 49.4 less-open 178.5 241.2 42.7 less-open 179.69 266.6 54.5 less-open 180.07 271.4 41.1 less-open 180.36 271.2 45.9 less-open 181.21 279.87 43.86 less-open 182.81 133.87 69.36 less-open 183.46 133.09 72.92 less-open Page 6 of 7
Fracture Orientations Interpreted from MW-52 Acoustic Televiewer Log Indian Point Site Buchanan, NY Prepared for: GZA 105836 - mw52i.xls down-dip interpreted compass dip planar depth azimuth angle feature (feet)
(degrees)
(degrees) category 184.16 131.13 67.04 less-open 185.69 120.31 56.21 less-open 186.19 111.23 72.87 less-open 187.05 281.76 46.43 less-open 187.26 278.62 45.38 less-open 187.99 181.8 74.2 less-open 188.79 181.14 45.27 less-open 190.2 285.89 59.66 less-open Page 7 of 7
Geophysical Applications Appendix C Pump Rates & Observed Drawdown During Pumping Flowmeter Tests
Geophysical Applications Table 1 Pump Rates & Observed Drawdown During Pumping Flowmeter Tests Well Name Pumping Rate (gpm)
Maximum Observed Drawdown (feet)
MW-30 N/A (GZA added water to this well, it was not pumped during flowmeter tests)
N/A MW-31 0.48 0.0 MW-32 0.25 0.5 MW-34 0.48 not measured MW-35 0.45 not measured (pump quickly ran dry)
MW-39 0.45 0.49 MW-40 0.50 0.15 MW-51 0.75 4.58 MW-52 N/A (water level quickly dropped by 3.1 feet, & pump was turned on/off as needed to maintain this lowered water level) 3.1
215 Hopping Brook Road Holliston MA 01746 508-429-2430 FAX 508-429-0488 November 28, 2007 Dr. David Winslow, PG GZA GEOENVIRONMENTAL OF NEW YORK 440 Ninth Avenue New York, NY 1001
Subject:
Borehole Geophysics Logging Report voice: 212-594-8140 Second Work Phase fax:
212-279-8180 Indian Point Energy Center Buchanan, New York
Dear Mr. Winslow:
This report describes borehole geophysics logging performed by Geophysical Applications, Inc. at the above-noted site. The primary objective of this survey was to help GZA identify hydraulically active fracture depths and orientations encountered by 15 uncased bedrock boreholes. The logged wells included:
MW-46 MW-53 MW-54 MW-55 MW-56 MW-57 MW-58 MW-59 MW-60 MW-62 MW-63 MW-65 MW-66 MW-67 RW-1 The upper portion of well MW-61 was also examined (with conventional video and optical televiewer only), to help GZA evaluate the depth and condition of drilling apparatus that broke inside that attempted well.
The borehole-logging suite performed at each remaining well included: fluid temperature (FTemp),
fluid resistivity (FRes), acoustic televiewer (ABI), and heat-pulse flowmeter testing. The flowmeter testing was performed during both ambient and pumping conditions. Optical televiewer logging was also performed at most boreholes (excluding MW-46, MW-53, MW-57, and MW-58).
METHODS OF INVESTIGATION Survey Control All borehole logs were referenced to depths below approximate ground surface. The geophysical logging winch contains an optical depth encoder, to maintain depth measurements accurate within approximately + 0.2 feet throughout a borehole.
Borehole Geophysics Logging A Mount Sopris model 4MXA or 4MXB logging winch equipped with a Mount Sopris model MGX-II electronics console recorded conventional logs at each well. All conventional log data
Dr. David Winslow, PG November 28, 2007 GZA GEOENVIRONMENTAL OF NEW YORK Page 2 Geophysical Applications were recorded at 0.1-foot depth increments, as determined by the logging winchs digital depth encoder.
FTemp and FRes logs were recorded during the first downward logging run at each borehole, using a Mount Sopris caliper probe with a fluid temperature and fluid resistivity subassembly.
These fluid logs were obtained using a downward logging speed of approximately 4 to 5 feet per minute. Caliper data were subsequently recorded while pulling the same probe upward at approximately 10 feet per minute.
Acoustic televiewer (ABI) data were obtained using an Advanced Logic Technologies (ALT) model ABI40 acoustic televiewer probe, with the Mount Sopris winch and an ALT model Abox electronics console. ATV data were recorded at 0.01-foot depth intervals, with 288 pixels for each 360-degree scan around the borehole wall. Logging speeds were approximately 4 feet per minute with this probe.
An optical televiewer log was recorded in most wells using an ALT model OBI40 probe, also with a Mount Sopris winch and the ALT electronics console. OBI data were stored at depth increments of 0.007 feet, with 360 pixels for each 360-degree scan around the borehole wall.
OBI logging speeds were also approximately 4 feet per minute.
A pair of centralizer assemblies positioned the ABI and OBI probes near the middle of a borehole. Each centralizer included four stainless-steel bow springs, clamped to the probe housings with brass compression fittings, at positions recommended by the probe manufacturer to minimize the risk of interference with the probes internal three-component magnetometers.
Conventional video logs were recorded at MW-61 to help evaluate the depth and condition of broken drilling apparatus in that well. These images were obtained using a GeoVisions Jr.
black-and-white borehole video system.
Flowmeter data were recorded with a Mount Sopris model HPF-2293 heat-pulse flowmeter probe, at specific depths selected from field plots of the caliper, FTemp, and FRes logs.
Flowmeter data were initially recorded under ambient conditions. The same test depths were subsequently repeated while pumping at approximately 0.2 to 0.8 (gpm) with a Grundfos or Fultz variable-speed pump. The pump was positioned a few feet below the observed static water level in each well. In some cases, the pump was operated so as to maintain the water level at a consistent depth below the static level (if the well produced little water and the water level would otherwise be constantly dropping while pumping).
All geophysical log data were recorded on a laptop computers hard drive, and copied to CD-ROM as a backup precaution.
Post-survey plot scales were adjusted to display as much detail as possible. All conventional logs and flowmeter data were merged onto one plot, to aid data correlation. Televiewer logs are presented on separate pages, at an enlarged scale, for clarity.
Quality Assurance Checks A variety of checks were performed periodically during the fieldwork, to help assure that the geophysical logging probes were functioning properly:
The caliper probe calibration was checked using two rings of known diameter (3.51 and 10.25 inches).
Dr. David Winslow, PG November 28, 2007 GZA GEOENVIRONMENTAL OF NEW YORK Page 3 Geophysical Applications The ABI probe was visually examined prior to each logging run, to confirm that the mirrors motor was rotating in the proper direction. Following this check, the probe was not turned off until data collection was complete.
The ABI and OBI probes magnetometers were functionally checked by comparing the azimuths reported by those probes (while stationary, typically on top of a plastic shipping box) with the probes azimuth as measured by a handheld compass.
Equipment Decontamination Procedures Decontamination consisted of an Alconox scrub and tap water rinse of the logging cable and probes between logging runs.
SURVEY LIMITATIONS Measured geophysical-log depths are estimated to be accurate within + 0.2 feet at this site, allowing for some slippage of the winches depth-measurement wheels.
The caliper-probe arms can measure borehole diameters up to approximately 16 inches. Caliper logs can most-confidently detect fractures that cross a borehole at moderate angles, e.g. less than approximately 70 degrees from horizontal. Caliper logs may not accurately detect near-vertical fractures.
The heat-pulse flowmeter probe can measure vertical (i.e. upward or downward) water flow rates between 0.02 and approximately 1.2 gallons per minute (gpm). Higher flow rates may be erroneously characterized as zero flow by this probe. This device does not measure horizontal water flow rates or directions.
Hydraulically-active fracture zones were inferred by correlating numerous geophysical logs.
These interpretations are a subjective judgment based upon available data.
Acoustic and optical televiewer probes rely on a three-component magnetometer to orient the recorded images with respect to magnetic north. These images become distorted when the magnetometers approach the bottom of steel casing, typically beginning approximately 4 to 6 feet below the steel. The upper portion of each unoriented televiewer image was imported into the WellCAD log-plot software and manually rotated to match a distinctive feature below the magnetically distorted interval, to provide usable images throughout the entire water-filled and uncased borehole depth ranges. Dip orientations of televiewer-inferred features within 2.5 feet of a steel casing are therefore approximate.
Calculated down-dip compass azimuths of nearly-horizontal planar features have larger uncertainties than azimuths of steeper-dipping features.
RESULTS Geophysical log data and generalized log interpretations are described below. Specific interpretations regarding hydraulically-active fracture depths are listed in the comments column on the conventional log plots. Most caliper logs show a one-or two-inch diameter range (i.e. 3.5 to 4.5, or 3 to 5, inches in diameter). Horizontal plot scales for the remaining logs were adjusted to show the full range of observed variations at each borehole.
All geophysical logs described in this report are presented in Appendix A, and summary televiewer interpretations are provided in Appendix B. These televiewer-interpretation tables are Excel
Dr. David Winslow, PG November 28, 2007 GZA GEOENVIRONMENTAL OF NEW YORK Page 4 Geophysical Applications spreadsheets listing observed planar-feature depths, down-dip compass directions for each inferred planar feature (note that this is perpendicular to the strike direction), feature dip angles with respect to horizontal, and whether an inferred feature was judged to be relatively open or less-open.
Caliper log data are presented in the left conventional log-plot column. Caliper inflections to the right indicate borehole enlargements, for example at casing joints, or where the drill bit passed through a fracture zone.
Fluid temperature (FTemp) and fluid resistivity (FRes) logs are presented in the next conventional-log plot column. Localized inflections or changes in slope of FTemp or FRes logs typically represent water entering or exiting a borehole. Large inflections at the very bottom of a borehole may represent only accumulated sediments with temperature or electrical properties that contrast with the water column.
Heat-pulse flowmeter data are presented on the caliper panel (ambient flow measurements) and on the FTemp/FRes panel (flow measurements while pumping). Shaded boxes to the left of centerline on either panel represent downwards water flow, with the box length indicating the flow magnitude in gpm. Shaded boxes to the right of a panels centerline represent upwards water flow. Filled circles represent depths where zero flow was observed (i.e., flow less than the probes minimum detectable rate, approximately 0.02 gpm). Flowmeter test depths were selected on-site using field plots of the caliper, fluid temperature, and fluid conductivity logs. Note that the plotted flow magnitudes shown are as reported by the acquisition software. Pumping rates and observed drawdown (from the 15 wells where pumping flowmeter tests were performed) are listed in Appendix C, Table 1.
Acoustic televiewer data are presented via two columns (ABI40 traveltime and amplitude), where each column represents a cylindrical image sliced down the north edge and laid flat on the printed page. Magnetic north is at the left edge of each column, and the plots progress through east, south, west, and back to north at the right-hand edge.
Acoustic televiewer data were evaluated using WellCADs image-processing module, to measure planar feature dip angles and down-dip azimuths. All down-dip azimuths are referenced to magnetic north. Measured feature orientations are indicated by tadpole plots, where each filled-circle indicates a features dip angle from horizontal (plotted on a graph that ranges between zero and 90 degrees from left to right). Each tadpole tail points in the features down-dip azimuth, assuming that magnetic north is straight up on the printed page. Note that the down-dip azimuth indicated by each tadpole tail is perpendicular to the features strike direction. Also note that the tadpole orientations were corrected for borehole deviation from a vertical orientation.
Optical televiewer data are presented in a single column (labeled OBI40 image), showing geologic elements with contrasting color properties. The OBI40 image orientation is comparable to the ABI40 log, with magnetic north at the left edge, progressing through east, south, west, and back to north at the right-hand edge.
Planes represented on both the ABI travel-time and amplitude plots are denoted as open features.
Features represented only on the ABI amplitude plots are likely to have smaller apertures (or possibly represent bedding, foliation or mineral-filled joints), and are therefore judged relatively less open. Red tadpoles, and red sine-curve lines superimposed on the ABI plots, represent inferred open fractures. Black tadpoles, and black sine curves on the ABI plots, represent interpreted less-open features. The tadpoles are also shown on the conventional log plots, to help indicate
Dr. David Winslow, PG November 28, 2007 GZA GEOENVIRONMENTAL OF NEW YORK Page 5 Geophysical Applications possible orientations of planar features that contributed to groundwater flow observed in each borehole.
Most planar feature orientations were interpreted from the acoustic televiewer logs, because the open or less-open nature of a fracture is more readily evaluated by the ABI data than the OBI40 images (open fractures can be difficult to distinguish based on color alone, particularly when the rock is dark-colored). OBI40 interpretations provided estimates of bedding plane orientations, and possibly some fractures, above the water level (particularly at RW-1, per GZAs request).
Televiewer interpretations are summarized using rose diagrams, to indicate the predominant down-dip azimuth(s) of features observed in a borehole. These rose diagrams are presented with magnetic north oriented straight up on the printed page. The red rose diagram represents inferred open features, and the black rose diagram represents inferred less-open features (e.g. bedding).
A stereoplot also summarizes the open and less-open feature orientations inferred from the televiewer logs. Each stereoplot was prepared using an equal-angle (Schmidt) projection on the southern hemisphere, with north oriented straight up on the printed page. The pole to a horizontal feature would plot near the diagrams center, whereas a vertical features pole would plot at the diagrams outer edge, opposite the features down-dip compass direction.
Annotations on the conventional log plot describe interpreted hydraulically-active fracture depths, based on correlations between all of the available log data. Selected observations that may be of particular interest are described below.
MW-46 This boreholes caliper log shows several minor enlargements between the casing bottom and 16 feet deep, with a distinct enlargement near 10 feet.
FTemp inflections or slope changes judged to possibly represent hydraulically-active zones were inferred near 10, possibly 19 to 21, possibly 24, and possibly 26.5 feet deep.
FRes data values are not shown for this borehole, because the recorded data values exhibited very unusual variations. Negative FRes data values were observed at depths less than 25 feet; this suggests that the borehole fluids were more conductive than the probe manufacturers lower calibration limit for the FRes data channel. FRes data values greater than 25 feet deep appeared to exceed the probes upper measurement limit. An electrically-resistive material covering the probes measurement electrodes could cause this, but it seems unlikely at this site.
Measurable water flow was not observed during ambient conditions in this borehole.
Inflow while pumping originated between 22 to 29 feet deep, and may have increased slightly between 17 to 22 feet. Most inflow while pumping apparently entered less than 12 feet deep (the shallowest possible flowmeter test depth while pumping, due to insufficient space for the pump and probe when the water level was lowered by pumping).
Interpreted less-open planar features (black rose diagram) dip down towards the north, north-northeast, south-southeast, southeast, north-northwest, and south.
Two open planar features (red rose diagram) were interpreted, dipping down towards the north-northeast and east-northeast.
The stereoplot diagram shows two general clusters of feature poles. The black poles in the diagrams upper left quadrant represent less-open planes that dip down towards the southeast and
Dr. David Winslow, PG November 28, 2007 GZA GEOENVIRONMENTAL OF NEW YORK Page 6 Geophysical Applications south-southeast, between approximately 45 to 75 degrees from horizontal. A group of red and black poles near the bottom of the stereoplot represents open and less-open planes that dip down towards the north and north-northeast, between approximately 40 to 65 degrees from horizontal.
MW-53 This wells caliper log shows several enlargements between the casing bottom and 44 feet deep.
The smaller-diameter, cored portion of the borehole below 44 feet was quite smooth.
FTemp and/or FRes inflections or slope changes judged likely to represent hydraulically-active zones were observed near the following depths: 64, 67.5, possibly 80, possibly 84 to 87, 91.5, 96, 98.5, possibly 102, 105, possibly 111, possibly 115, and possibly 121 feet. All FRes data values appear to be less than zero on this wells conventional log plot; this indicates that the fluid resistivity was less than the probes lower calibration limit provided by the probe manufacturer.
Weak ambient inflow entered less than 63 feet deep, and flowed downward. Some of this downward flow exited at a zone of lower hydraulic head between 63 to 66 feet deep, and the remainder exited between 70 to 79.5 feet.
Inflow while pumping originated between 100 to 110.5 feet deep, but most inflow while pumping entered between 70 to 79.5 feet. Additional inflow while pumping entered between 66 to 70 feet, and possibly 90 to 100 feet.
Most interpreted less-open planar features (black rose diagram) dip down towards the east, east-northeast, west-northwest, and northwest.
Open planar features were not interpreted below the water level in this borehole.
The stereoplot diagram shows at least three clusters of black (less-open) feature poles. A group of poles near the diagrams left edge represents less-open planes that dip down towards the east and east-northeast between approximately 35 to 75 degrees from horizontal. A group of poles in the stereoplots lower right quadrant represents less-open planes that dip down towards the northwest and west-northwest between roughly 20 to 50 degrees from horizontal. A small cluster of black poles near the diagrams upper right edge represent less-open planes that dip down towards the west-southwest at approximately 75 to 80 degrees from horizontal.
MW-54 This wells caliper log shows modest enlargements near the casing bottom, and also near 37.5, 145, 160 to 163, and 199 to 201 feet deep. Big enlargements were observed between 173 to 176 and 190 to 192.5 feet.
FRes (and sometimes FTemp) inflections judged likely to represent hydraulically-active zones were observed near the following depths: 21, possibly 36.5 and 40 to 42, 54 to 59, 145, possibly 165, 175, 190.5, and possibly 196 to 201 feet.
Downward ambient flow was observed at most flowmeter test depths in this borehole. Ambient downward inflow originated between the casing bottom and 23 feet deep, and increased between the following depth ranges: 23 to 35, 35 to 45, 52 to 62, and 62 to 70 feet. Portions of this downward ambient flow exited at zones of lower hydraulic head at the following depth intervals: 120 to 130, 130 to 140, 140 to 150, 150 to 159, 170 to 179, and 185 to 195 feet.
Dr. David Winslow, PG November 28, 2007 GZA GEOENVIRONMENTAL OF NEW YORK Page 7 Geophysical Applications Inflow while pumping originated greater than 195 feet deep, and increased between the following depth intervals: 170 to 179, 150 to 159, 140 to 150, 130 to 140, 120 to 130, 62 to 70, 52 to 62, 35 to 45, 23 to 35, and between the casing bottom to 23 feet deep.
Most interpreted less-open planar features (black rose diagram) dip down towards the east-southeast, east, southeast, north-northwest, and northwest.
Most of the interpreted open planar features (red rose diagram) dip down towards the southeast, east-southeast, east, and west-northwest.
The stereoplot diagram shows two general regions that contain most of the plotted poles. The dense cluster of black and red poles on the stereoplots left side represents less-open and open planes that dip down towards the east-southeast, southeast, and east-northeast at approximately 30 to 80 degrees from horizontal. The black and red poles that occupy most of the stereoplots lower right quadrant represent less-open and open planes that dip down towards the northwest, north-northwest, and west-northwest, also at dip angles between 30 to 80 degrees from horizontal.
MW-55 This boreholes caliper log shows only minor enlargements in diameter throughout the logged depth range. A stepwise decrease in average borehole diameter near 54 feet deep may represent a change to a slightly smaller core barrel.
Very distinct changes in FRes data values likely represent hydraulically-active zones near 12, 15.5, and 33.5 feet deep.
Weak ambient inflow may have entered between 14.5 to 19 feet deep, and flowed downward.
Additional ambient inflow may have entered between 40 to 48 feet deep, and flowed upward. Both the downward flow from above, and the upward flow from below, apparently exited at a zone of lower hydraulic head between 28 to 40 feet deep.
Weak inflow while pumping originated greater than 69 feet deep, but most inflow while pumping entered between 40 to 48 feet deep. Additional inflow while pumping entered between 28 to 40 and 14.5 to 19 feet deep.
Most interpreted less-open planar features (black rose diagram) dip down in three general directions: northwest, east, and south. Smaller numbers of additional less-open planes dip down in nearly all compass azimuths.
Three open planar features were interpreted in this well, dipping down towards the east and east-northeast.
The stereoplot diagram shows many feature poles throughout the diagram, but at least four general groups of common feature poles can be inferred. A group of black and red poles near the diagrams left edge represents less-open and open planes that dip down towards the east-northeast, east and east-southeast between approximately 30 to 80 degrees from horizontal.
Numerous black poles above the stereoplots center represent less-open planes that dip down towards the southeast, south-southeast, south, and south-southwest at dip angles between 10 to 80 degrees from horizontal. A small, tight cluster of black poles located slightly right and above the stereoplots center represent less-open planes that dip down towards the west-southwest and southwest, at roughly 15 to 35 degrees from horizontal. A closely-spaced group of black poles in the stereoplots lower right quadrant represents less-open planes that dip down primarily towards the northwest, between approximately 35 to 80 degrees from horizontal.
Dr. David Winslow, PG November 28, 2007 GZA GEOENVIRONMENTAL OF NEW YORK Page 8 Geophysical Applications MW-56 This wells caliper log indicates a couple of enlargements between the casing bottom and 34 feet deep, and a very smooth borehole wall at greater depths.
FRes inflections judged likely to represent hydraulically active zones were interpreted near the following depths: possibly 52, possibly 56 to 57, possibly 69, 73.5, 75, 76, and 84 feet.
Weak inflow entered less than 51 feet deep, and flowed downward. Weak inflow also entered greater than 83 feet deep, and flowed upward. This ambient downward and upward flow apparently exited at a zone of lower hydraulic head between 66 to 74 feet deep, possibly near the 69 and/or 73.5-foot deep FRes inflections.
Inflow while pumping originated greater than 83 feet deep, and increased between the following depth ranges: 74 to 83, 66 to 74, and 55 to 60 feet. Additional inflow while pumping likely entered less than 55 feet deep (the shallowest flowmeter test depth that could be occupied with the pump in this borehole).
Less-open planar features (black rose diagram) exhibited numerous down-dip azimuths, but most less-open planes dip down towards the south, southwest, north, north-northwest, west, and south-southeast.
Only one open planar feature (red rose diagram) was interpreted below the water level, dipping down towards the southeast.
The stereoplot diagram shows numerous feature poles that represent a wide variety of dip angles and down-dip azimuths. At least three possibly clusters of feature poles are visible on this diagram.
The black poles near the stereoplots center represent less-open planes that dip less than 10 degrees from horizontal in numerous directions. The black poles near the top of the stereoplot represent less-open planes that dip down towards the south or south-southeast, between approximately 50 to 80 degrees from horizontal. A small cluster of black poles near the bottom of the stereoplot represents less-open planes that dip down towards the north or north-northeast, at roughly 60 to 80 degrees from horizontal.
MW-57 The caliper log for this borehole shows only a few relatively minor enlargements throughout the logged interval.
Distinct FTemp and/or FRes inflections judged likely to represent hydraulically-active zones were interpreted near the following depths: 8, 11 to 12.5, and 20 feet deep. Other subtle FRes inflections or slope changes may represent additional transmissive zones, as noted in the comments column of the conventional log plot.
Ambient inflow entered between 10 to 18 feet deep, flowed upward, and exited at a zone of lower hydraulic head near the casing bottom. Additional ambient inflow entered between 18 to 22 feet deep, flowed downward, and exited at a zone of lower hydraulic head below 42 feet deep.
Weak downward flow while pumping may have entered between 31 to 37.5 feet deep, and possibly exited between 37.5 to 42 feet deep at a zone of lower hydraulic head. Weak upward flow while pumping originated between 18 to 22 feet deep, but most upward flow while pumping entered between 10 to 18 feet deep.
Dr. David Winslow, PG November 28, 2007 GZA GEOENVIRONMENTAL OF NEW YORK Page 9 Geophysical Applications Most interpreted less-open planar features (black rose diagram) dip down towards the northwest, west-northwest, east, and east-southeast.
Four open planar features (red rose diagram) were interpreted, dipping down towards northeast, west-northwest, and northwest.
The stereoplot diagram shows at least three possible clusters of feature poles. Black poles near the diagrams left edge represent less-open planes that dip down towards the east, east-northeast, east-southeast, and southeast, at approximately 50 to 80 degrees from horizontal. Red and black poles plotted slightly below the diagrams center represent open and less-open planes that dip down towards the north, north-northwest, north-northeast, and northeast at roughly 10 to 30 degrees from horizontal. Numerous black poles plotted in the diagrams lower right quadrant represent less-open planes that dip down towards the northwest and west-northwest at dip angles ranging from approximately 10 to nearly 90 degrees from horizontal.
MW-58 This wells caliper log shows minor anomalies between the casing bottom and 20 feet deep, and a relatively smooth borehole wall at greater depths.
Distinct FRes and/or FTemp inflections near the following depths are judged likely to represent hydraulically-active zones: 17, 20, 31.5, 34.5, 46, possibly 48, and possibly 62 to 64 feet.
Ambient inflow entered between 18 to 22 feet deep, flowed up, and apparently exited at a zone of lower hydraulic head between the casing bottom and 18 feet deep. Additional weak ambient inflow entered between 32 to 37 feet deep, and flowed downward. Additional downward ambient inflow entered between 45 to 53 feet deep; all of this downward ambient flow exited at a zone of lower head between 53 to 61 feet deep.
Weak inflow while pumping originated between 61 to 67 feet deep, and increased between the following depth ranges: 53 to 61, 45 to 53, 37 to 45, 32 to 37, 22 to 32, and 18 to 22 feet. Most inflow while pumping entered in the 45 to 53-foot depth range.
Most less-open planar features (black rose diagram) are interpreted to dip down towards the northwest, north-northwest, east-southeast, and south-southeast.
Three interpreted open planar features (red rose diagram) dip down towards the north-northwest and northwest.
The stereoplot diagram shows that nearly all observed feature poles fall into one of two clusters.
The cluster located in the diagrams lower right quadrant represents less-open and open planes that dip down towards the northwest, north-northwest, and west-northwest at dip angles between approximately 25 to 65 degrees from horizontal. Black poles in the stereoplots upper left quadrant represent less-open planes that dip down towards the east-southeast, south-southeast, and southeast at roughly 60 to 75 degrees from horizontal.
MW-59 This boreholes caliper log shows several enlargements between the casing bottom and 30.5 feet deep, and a smooth borehole wall at greater depths.
Distinct FRes and/or FTemp inflections are judged likely to represent hydraulically-active zones near the following depths: 21, possibly 24, 31 to 32, 41 to 42, 55 to 57, 59, possibly 68, and possibly 73 feet.
Dr. David Winslow, PG November 28, 2007 GZA GEOENVIRONMENTAL OF NEW YORK Page 10 Geophysical Applications Upward ambient flow originated between 64 to 73 feet deep, and increased between the following depths: 54 to 64, possibly 45 to 54, and 35 to 45 feet. Weak ambient flow also apparently entered between the casing bottom and 19.5 feet deep, and flowed both up and down towards zones of lower hydraulic head (the upward flow probably exited at a casing joint). Strong upward ambient flow from below, and weak downward ambient flow from above, apparently exited at a zone of lower hydraulic head between 19.5 to 26 feet deep.
Inflow while pumping also originated between 64 to 73 feet deep, and increased between the following depth ranges: 54 to 64, 35 to 45, and 19.5 to 26 feet. Most inflow while pumping entered between 19.5 to 26 feet deep, coincident with the biggest caliper enlargement observed in this borehole.
Most interpreted less-open planar features (black rose diagram) dip down towards the northwest, southeast, and south-southwest.
Interpreted open planar features (red rose diagram) dip down towards the northwest, west-southwest, and southwest.
The stereoplot diagram indicates at least three possible clusters of feature poles. The dense cluster in the stereoplots lower right quadrant represents mostly less-open planes that dip down towards the northwest and north-northwest, at approximately 20 to 50 degrees from horizontal. The group of poles in the diagrams upper left quadrant represents less-open planes that dip down towards the southeast and south-southeast at roughly 25 to 70 degrees from horizontal. A third group of poles, near the stereoplots upper right edge, represents mostly less-open planes that dip down towards the south-southwest and southwest between 40 to approximately 85 degrees from horizontal.
MW-60 This wells caliper log shows an enlargement to approximately 8.5 inches near 55 feet deep, and smaller enlargements near the casing bottom and 156 feet. The remainder of this boreholes uncased interval is relatively smooth.
Distinct FRes inflections judged to represent hydraulically active zones were interpreted near 34 to 37, 53, and 77 feet deep.
Weak ambient inflow may have entered between 11.5 to 25 feet deep, flowed upward, and exited near the static water level (11 feet deep at the time of logging).
Inflow while pumping entered between 180 to 196.5 feet deep, and probably increased between the following depth ranges: 149 to 165, 106 to 121, 92 to 106, 80 to 92, 65 to 80, 50 to 65, and possibly 21 to 25 feet.
Most interpreted less-open feature planes (black rose diagram) dip down towards the southeast, east-southeast, and northwest.
Interpreted open planar features (red rose diagram) dip down towards the east-southeast, south-southeast, north-northwest, and northwest.
At least three clusters of planar-feature poles are evident on the stereoplot diagram. The dense group of black and red poles in the diagrams upper left quadrant represent less-open and open planes that dip down towards the southeast, east-southeast, and south-southeast at dip angles ranging between 25 to approximately 70 degrees from horizontal. A dense cluster of poles in the
Dr. David Winslow, PG November 28, 2007 GZA GEOENVIRONMENTAL OF NEW YORK Page 11 Geophysical Applications stereoplots lower right quadrant represents mostly less-open planes that dip down towards the northwest and north-northwest between 20 to 80 degrees from horizontal. A small group of black poles near the stereoplots right edge represents less open planes that dip down towards the west and west-northwest, at approximately 60 to 70 degrees from horizontal.
MW-61 This well was logged twice with an optical televiewer (10/6/06 and 4/12/07), and twice with a conventional borehole video camera (10/10/06 and 4/24/07). The purpose of this logging was to help GZA evaluate this boreholes condition, after some drilling apparatus broke and became lodged.
Both optical televiewer logs accompany this report. The video logs were previously supplied to GZA (the first one on VHS-format videotape, the second one on a DVD-ROM).
The first optical televiewer log (10/6/06) was recorded throughout the accessible depth range of the borehole, ending near 57 feet deep, slightly above the broken drilling equipment. The drilling equipment was visible on the conventional borehole video image from 10/10/06; the upper edge of the drilling steel was cut and twisted in a manner that partially obstructed the center of the borehole.
The drilling steel doesnt appear on the optical televiewer log because the OBI40 probe looks horizontally at the borehole wall, instead of downward.
The optical televiewer log was repeated on 4/12/07 after an effort had been made to overcore the broken drilling apparatus. This televiewer log shows that the overcore hole actually sliced through one side of the drilling steel; note the shadow that represents the original cored hole, near the middle of the OBI40 image, below approximately 52.3 feet deep. The cut edges of the broken drill steel are visible below approximately 62.3 feet deep. The interior of the cut drill steel is represented by the black vertical stripe near the center of the OBI40 image, below approximately 62.3 feet.
A polar deviation plot was prepared for this well from the 10/6/06 OBI log, and is included with this report. The deviation plot is accurate only where steel casing did not influence the OBI40 probes magnetometers, e.g. below approximately 49 feet deep. In that uncased interval, the original borehole trended slightly towards the west-southwest.
MW-62 The caliper log from this borehole showed notable enlargements immediately below the casing bottom, and a very smooth borehole wall at greater depths. Note that the 6-inch casing ends near approximately 40.5 feet deep, and the 4-inch diameter uncased borehole begins near 45 feet.
Numerous FRes and FTemp inflections and slope changes between 49 to 86 feet deep are judged likely to represent hydraulically-active zones. Fluid-log anomalies near the following depths are also judged to possibly represent additional hydraulically-active zones: 42.5, 127, 137.5 to 139, and 182 feet.
Weak ambient inflow entered between the casing bottom and 45 feet deep, flowed downward, and exited at a zone of lower hydraulic head between 45 to 57 feet.
Inflow while pumping originated greater than 194 feet deep, and increased between 179 to 194, 163 to 179, 149 to 163, 135 to 149, 120 to 135, possibly between 107 to 120, 92 to 107, possibly between 80 to 92, 70.5 to 80, and 45 to 57 feet.
Dr. David Winslow, PG November 28, 2007 GZA GEOENVIRONMENTAL OF NEW YORK Page 12 Geophysical Applications Most interpreted less-open planar features (black rose diagram) dip down towards the east-southeast, northwest, and north-northwest.
Only two open planar features (red rose diagram) were interpreted. They dip down towards the north and northwest.
The stereoplot diagram shows at least three groups of feature poles. The largest group occupies most of the stereoplots lower right quadrant, and represents mostly less-open planes that dip down towards the north-northwest, northwest, and west-northwest at dip angles between 15 to 80 degrees from horizontal. A second distinct cluster of poles is located near the stereoplots left edge, representing less-open planes that dip down towards the east-southeast, east, and southeast at dip angles of approximately 50 to 80 degrees from horizontal. A small cluster of black poles near the stereoplots upper right edge represents less-open planes that dip down towards the south-southeast and southeast, at roughly 55 to 80 degrees from horizontal.
MW-63 This wells caliper log shows numerous enlargements between 87 to 98 feet deep, and a relatively smooth borehole wall at most remaining depths. Note that the uncased section of this well is approximately 4 inches in diameter, but the casing diameter is approximately 6 inches.
Several FTemp or FRes slope changes or inflections are judged likely to represent hydraulically-active zones, including near the following depths: possibly 36 (at the casing bottom), 52 to 54, approximately 85, approximately 93, 112 to 115, 123 to 132.5, 159 to 164, 172 to 178, and possibly 190 feet deep.
Upward ambient inflow originated greater than 191 feet deep, and increased between each of the shallower flowmeter test depths except for 180 to 191, 132.5 to 142.5, and 37.5 to 47.5 feet.
Inflow while pumping also originated greater than 191 feet deep, and increased between the following depth ranges: 180 to 191, 168 to 180, 153 to 168, 119.5 to 132.5, 110 to 119.5, 84 to 100.5, 70.5 to 84, and 47.5 to 58.5 feet. Note that most inflow while pumping apparently entered at the zone of caliper enlargements and interpreted open planar features near 87 to 93 feet deep.
Most interpreted less-open planar features (black rose diagram) dip down towards the east-southeast, east, and northwest.
Most interpreted open planar features (red rose diagram) dip down towards the southeast, south-southeast, and northwest.
The stereoplot diagram shows at least three possible clusters of feature poles. A large group of black and red poles, located mostly throughout the diagrams lower right quadrant, represents less-open and open planes that dip down towards the west, west-southwest, northwest, and north-northwest at dip angles ranging between approximately 15 to 80 degrees from horizontal. A dense cluster of black poles located to the left of the stereoplots center represents less-open planes that dip down towards the east-southeast and east, at dip angles between roughly 30 to 75 degrees from horizontal. A third possible cluster of black and red poles is located near the stereoplots upper left edge, representing less-open and open planes that dip down towards the southeast and south-southeast at dip angles ranging from 45 to 80 degrees from horizontal.
Dr. David Winslow, PG November 28, 2007 GZA GEOENVIRONMENTAL OF NEW YORK Page 13 Geophysical Applications MW-65 This boreholes caliper log shows an enlargement shortly below the casing bottom (between 34.5 to 38 feet deep), and a very smooth borehole wall at greater depths.
FRes inflections judged likely to represent hydraulically active features were observed near 36, 41.5, possibly 43 to 44, possibly 61, and 70 feet deep.
Weak downward flow was observed at all flowmeter test depths during ambient conditions. This indicates that water was entering the well near the casing bottom, flowing down, and exiting at a zone of lower hydraulic head greater than 80 feet deep.
During pumping conditions, water entered between 65 to 70 feet deep and flowed both down towards a zone of lower hydraulic head, and up towards the pump. Upward flow while pumping increased between 60 to 65, and also 46 to 50 feet deep. Shallower flowmeter test depths could not be performed while pumping, due to the lowered water level and space required for both the pump and flowmeter probe.
Less-open planar features (black rose diagram) mostly dip down towards the southeast, consistent with the bedding orientation. Some less-open planes also dip down towards the south, northwest, north-northwest, and east-northeast.
Only one open planar feature was interpreted in this well, near 44.5 feet deep; it dips down towards the southeast at roughly 32 degrees from horizontal.
The stereoplot shows one distinct cluster of feature poles, located above and left of the diagrams center. This cluster represents less-open and open planes that dip down towards the southeast, at approximately 30 to 50 degrees from horizontal.
MW-66 This boreholes caliper log shows a distinct increase immediately below the casing, and another near 43 feet deep. Only smaller enlargements were observed at greater depths; the 136-foot deep enlargement appears to be hydraulically active based on a corresponding FRes inflection.
FTemp and/or FRes inflections judged likely to represent hydraulically-active features were observed at the following depths: 43.5, 89, 97, 100 to 102, 110, 118, 125, possibly 131.5, 135, possibly 157, 165, 170, 182, and possibly 184 feet deep.
The vertical streaks on the OBI40 image probably represent floating materials that adhered to the probes lens when it was lowered into the water column.
Interpreted less-open planar features (black rose diagram) dip down in three general directions:
northwest and north-northwest, east-southeast, and south-southeast to south-southwest.
Most observed open planar features (red rose diagram) dip down towards the south-southwest, north-northwest, and north.
The stereoplot diagram shows four possible clusters of planar feature poles. A large cluster in the diagrams lower right quadrant represents less-open and open planes that dip down towards the north-northwest, northwest, and west-northwest, mostly at dip angles between 15 to 65 degrees from horizontal. A cluster located near the diagrams left edge represents less-open planes that dip down towards the east-southeast and southeast between 35 to 70 degrees from horizontal. A group of mostly black poles near the top of the stereoplot represents mostly less-open planes that dip down towards roughly the south, at dip angles greater than 55 degrees from horizontal. A fourth
Dr. David Winslow, PG November 28, 2007 GZA GEOENVIRONMENTAL OF NEW YORK Page 14 Geophysical Applications possible cluster is located above and right of the diagrams center, representing less-open planes that dip down towards the south-southwest and southwest at roughly 35 to 55 degrees from horizontal.
MW-67 This wells caliper log shows a few enlargements, particularly less than 42 feet deep. Additional small enlargements near 106, 110, and 269 feet deep correlate with fluid-log anomalies, and therefore are likely to be hydraulically active.
FTemp and FRes inflections judged to represent hydraulically active zones were observed at the following depths: possibly 61 or 66, possibly 73, 90 to 92, 97 to 101, 104 to 113, 133, 139, 148 to 149, possibly 154, 162, possibly 173, 176, 216 to 219, 222 to 242, 253 to 260, 269, 277 to 279, possibly 282 to 284, possibly 294, 300, 304, 307, 316, 323, 329, and 334 feet.
Ambient flowmeter tests disclosed upward flow throughout this borehole. Upward ambient flow originated greater than 330 feet deep, and increased between many of the shallower test depths (particularly between 275 to 290, 264 to 275, 250 to 264, 102 to 115, and also between the casing bottom and 38 feet deep). Note that strong upward ambient flow was observed within the steel casing, indicating that some upward ambient flow was exiting at one or more casing joints.
Inflow while pumping showed a similar pattern, with slightly higher (compared to ambient) flow rates observed at all depths except 330 feet. The strongest increases in inflow while pumping were observed at the following depth ranges: 275 to 290, 264 to 275, 250 to 264, 215 to 221, 175 to 190, 127 to 132, possibly 102 to 115 feet, and between the casing bottom and 38 feet.
Most interpreted less-open planar features (black rose diagram) dip down towards the north-northwest, east-southeast, and roughly south.
Most interpreted open planar features (red rose diagram) dip down towards the northwest.
The stereoplot diagram shows at least four generalized clusters of feature poles. A dense cluster located left and slightly above the diagrams center represents less-open planes that dip down towards the east-southeast and southeast at approximately 25 to 80 degrees from horizontal. A loosely-grouped cluster of poles near the top of the diagram represents mostly less-open planes that dip down towards the south-southeast, south, and south-southwest at dip angles between 20 to 85 degrees from horizontal. A dense cluster of poles near the bottom of the stereoplot represent mostly less-open planes that dip down towards the north-northwest, between 25 to 85 degrees from horizontal. A fourth possible cluster, located to the right of and below the diagrams center, represents mostly less-open planes that dip down towards the northwest and north-northwest at 25 to 80 degrees from horizontal.
RW-1 This boreholes caliper log shows numerous small irregularities, particularly between the casing bottom and 30 feet deep, and from 63 feet deep to the bottom of the logged interval.
Note that the water level was near 70 feet deep at the time of logging, therefore this well had an unusually long unsaturated and uncased interval (approximately 12 to 70 feet deep).
Distinct FTemp and/or FRes inflections judged likely to represent hydraulically-active zones were observed near the following depths: 73, possibly 76.5, 91.5, possibly 96, 100.5, and possibly 114 to 115 feet.
Dr. David Winslow, PG November 28, 2007 GZA GEOENVIRONMENTAL OF NEW YORK Page 15 Geophysical Applications This borehole exhibited numerous zones of water flow during ambient conditions. Both downward ambient inflow that entered less than 77 feet deep, and upward ambient inflow that entered between 83 to 93 feet deep, exited at a zone of lower hydraulic head between 77 to 83 feet.
Downward ambient inflow also entered between 98 to 107 feet deep, increased between 107 to 118 feet, and exited at a zone of lower head between 118 to 128 feet deep. Weak ambient downward flow also apparently entered between 128 to 136.5 feet deep, and exited at a zone of lower head below 136.5 feet.
Inflow while pumping originated greater than 136.5 feet deep, and increased between all successive, shallower measurement depths. Most inflow while pumping entered between 98 to 107 feet deep.
The optical televiewer (OBI40) image appears to show concrete between the casing bottom and approximately 30 feet deep. The lack of image clarity between the casing bottom and the water level was probably caused by condensation on the OBI probes lens, as it was lowered from a cold work area into the warm and moist air in the borehole. A few planar features that resembled fractures are visible on the OBI40 image, near 62 to 66 feet deep; all interpreted planar features above the water level are identified as less-open planes on the black rose diagram and stereoplot.
Staining (possibly from iron oxide) appears to be visible at numerous depths on the OBI40 image, particularly at a dipping fracture centered near 74 feet deep.
Interpreted less-open planar features (black rose diagram) dip mostly down towards the south-southeast, south, south-southwest, southeast, and west-northwest. Interpreted open planar features (red rose diagram) dip down towards the northwest and south-southeast.
The stereoplot diagram shows two possible clusters of common planar features. Loosely grouped black poles located to the right of (and slightly below) the stereoplots center, represent less-open planes that dip down towards the west-northwest and northwest between 25 to 70 degrees from horizontal. Black and red poles located above and left of the stereoplots center represent mostly less-open planes that dip down towards the southeast, south-southeast, and south-southwest at approximately 30 to 65 degrees from horizontal.
We appreciate this opportunity to provide geophysical services. Please call the undersigned at 508/429-2430 if we may provide additional information that would benefit GZAs project.
Sincerely, GEOPHYSICAL APPLICATIONS, INC.
Mark E. Blackey Principal and Geophysicist 105836 - 105836b.rpt.doc
Borehole Geophysics Logging Report Second Work Phase Indian Point Energy Center Buchanan, New York Prepared for GZA GEOENVIRONMENTAL OF NEW YORK November 2007
Appendix A Borehole Geophysics Log Plots
Project - Well: GZA / Buchanan, NY - MW-46 conventional logs Depth 1in:6ft FTemp (deg C) 10.6 20.4 caliper (inches) 3.5 4.5 Comments zero flow (gpm)
-0.3 0.3 pumping flow (gpm)
-0.3 0.3 zero pumping flow
-0.3 0.3 tilt-corrected planar features 0
90 0
5 10 15 20 25 30 all depths in feet below ground surface; steel casing to approximately 6 feet deep; water level near 7 feet deep at time of logging; FRes data values are not shown because they appeared to be erroneous (see text); the pump had to be removed to attempt the "pumping" flowmeter test at 12 feet, to allow the flowmeter probe to reach that depth a caliper enlargement & nearby FTemp slope change suggest a hydraulically active zone near 10 feet deep (this zone likely provided most inflow while pumping) additional weak inflow while pumping entered between 17 to 22 feet deep (possibly at subtle FTemp inflections near 19 &/or 21 feet) weak inflow while pumping originated between 22 to 29 feet deep 105836 - mw46.wcl Well: GZA / Buchanan, NY - MW-46 conventional logs
Project - Well: GZA / Buchanan, NY - MW-46 acoustic televiewer log Depth 1in:1.5ft ABI40 amplitude 0° 0° 180° 90° 270° ABI40 traveltime 0° 0° 180° 90° 270° planar ABI40 features 0° 0° 180° 90° 270° planar ABI40 features#1 0° 0° 180° 90° 270° tilt-corrected planar features 0
90 less-open feature rose Azimuth Count - Percent Interval open feature rose Azimuth Count - Percent Interval stereoplot Schmidt Plot - Lower Hemisphere 4
6 8
10 12 14 16 18 20 22 24 0° 180° 0° 180° 0° 180° Well: GZA / Buchanan, NY - MW-46 acoustic televiewer log Page 1
26 28 30 Well: GZA / Buchanan, NY - MW-46 acoustic televiewer log Page 2
Project - Well: GZA / Buchanan, NY - MW-53 conventional logs Depth 1in:10ft FTemp (deg C) 17.6 19.6 FRes (ohm-m)
-22
-12 caliper (inches) 3.5 4.5 Comments ambient flow (gpm)
-0.5 0.5 zero ambient flow
-0.5 0.5 pumping flow (gpm)
-0.5 0.5 zero pumping flow
-0.5 0.5 tilt-corrected planar features 0
90 5
10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 all depths in feet below ground surface; steel casing to approximately 30 feet deep; water level near 58 feet deep at time of logging; note that some small variations in the FTemp & FRes logs may have been caused by a pressure transducer that was removed from the well immediately prior to geophysical logging (removing the instrument causes slight mixing of the water column) downward ambient flow entered less than 63 feet deep some downward ambient flow may have exited at a zone of lower hydraulic head between 63 to 66 feet (probably at the 64-foot deep FRes inflection) inflow while pumping may have entered between 66 to 70 feet deep (possibly at the 67.5-foot deep FRes inflection) most inflow while pumping entered between 70 to 79.5 feet deep; weak ambient downward flow also exited at a zone of lower hydraulic head in this depth interval very weak inflow while pumping may have entered between 90 to 100 feet deep (possibly near the 91.5, 96, or 98.5-foot deep FRes inflections) inflow while pumping originated between 100 to 110.5 feet deep (possibly at numerous small FRes inflections in this depth interval, particularly at 104 to 105 feet, coincident with a FTemp slope change) the FRes increase at 124 feet deep probably represents accumulated sediments 105836 - mw53.wcl Well: GZA / Buchanan, NY - MW-53 conventional logs